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K TO 12 GRADE 5 LEARNER’S MATERIAL IN SCIENCE (Q1-Q4)

K to 12 Learning Module/Material in SCIENCE for Grade 5 Quarter 1 to Quarter 4

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K TO 12 GRADE 5 LEARNER’S MATERIAL IN SCIENCE (Q1-Q4)
Chapter 1: Properties of Matter
Lesson 1: Properties of some Materials
Activity 1: “ Different properties of some materials”
Objectives:
1.Identify some properties of materials they use at home.
2. Classify properties of materials as to their uses.
What you need:
Different objects
Pencil
Ruler
crayons
What to do:
1. The whole group will listen to the instructions given by the teacher.
2. Form a group of 5 members each and choose among your group the person who will
act as, leader, secretary, and presenter.
3. Each group will be given ample time to walk around the school to look for different
objects with different properties.
4. Record the list of objects in the chart (activity 1.1)
5. Write the information needed to complete the chart. The first object has been done
as an example.
6. Do the activity 1.2. Draw the materials and objects you gathered inside the boxes
accordingly.
7. Discuss your answers to your group mates.
8. Present your data chart in class.
2
Activity 1.1
Object What it is for
The material it is
made for
Why this material
is a good choice
Sauce pan To heat food metal Because it
conducts heat well
Activity 1.2
Hard Rough Shiny
Soft Smooth Dull
Guide Questions:
1. What can you say about the objects you gathered?
2. Are they still usable?
3. Which of those materials are soft?
4. Which of those materials are hard?
5. Do all the objects have the same characteristics?
6. How did you classify the materials?
7. What did you learn in this activity
3
Remember these:
Materials have different properties that make them useful for different jobs. Here are some properties that
materials have.
Conductors
Some materials are good conductors of heat. This means heat can travel through them easily.
Some materials are good conductors of electricity. This means electricity can travel through them easily.
Insulators
Some materials are insulators of heat. This means they do not allow heat to travel through them very
easily. Some materials are insulators of electricity. This means that electricity cannot travel through them.
4
Lesson 2: Useful and Harmful Properties of some Materials
Activity 1: “ Helpful vs. hazardous materials”
Objectives:
1.Determine whether the material is useful or harmful.
2. Group the materials according to their uses.
3. Practice safety precautions in the use of certain materials.
What you need:
Activity sheets and ballpen
What to do:
1. Form a group and choose among your group who will act as recorder, leader, and
presenter.
2. Get from your teacher the materials to be used for the activity.
3. Listen to the instructions to be given by your teacher.
4. Instruct the pupils to do activity 1.1 and activity 1.2
5. In activity 1.1 group the household materials written below according to their uses, then
write the most appropriate heading.
6. In activity 1.2 study the objects in the picture and determine whether the material is
useful or harmful to humans.
7. Discuss your answers with your group mates.
8. Copy the data chart in your science notebook.
9. Present your answer to the class.
Activity 1. 1
Tomato sauce shampoo detergent
Lotion sugar body soap
Baby powder fish sauce bleaching solution
Cologne cooking oil vinegar
Floor wax disinfectant muriatic acid
___________ _____________ _____________
5
___________ _____________ _____________
___________ _____________ _____________
___________ _____________ _____________
___________ _____________ _____________
Actvity 1.2
Guide Questions:
1. What materials you usually use at home?
2. Why it is important to observe Safety precautions in using household materials?
3. What household materials have been improved by technology?
4. How will you know if household material is harmful?
5. As a Grade 5 pupil, what will you do to control hazardous effects of some
household materials at home and in the environment?
Remember these:
 Household materials can be grouped as follows: those used for cleaning and food
preparation, beautification, building construction, and household product.
 Materials (found in products) like metal, wood, ceramic, rubber, glass, or plastic have
specific properties.
6

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K TO 12 GRADE 5 LEARNER’S MATERIAL IN SCIENCE (Q1-Q4)

  • 2. Chapter 1: Properties of Matter Lesson 1: Properties of some Materials Activity 1: “ Different properties of some materials” Objectives: 1.Identify some properties of materials they use at home. 2. Classify properties of materials as to their uses. What you need: Different objects Pencil Ruler crayons What to do: 1. The whole group will listen to the instructions given by the teacher. 2. Form a group of 5 members each and choose among your group the person who will act as, leader, secretary, and presenter. 3. Each group will be given ample time to walk around the school to look for different objects with different properties. 4. Record the list of objects in the chart (activity 1.1) 5. Write the information needed to complete the chart. The first object has been done as an example. 6. Do the activity 1.2. Draw the materials and objects you gathered inside the boxes accordingly. 7. Discuss your answers to your group mates. 8. Present your data chart in class. 2
  • 3. Activity 1.1 Object What it is for The material it is made for Why this material is a good choice Sauce pan To heat food metal Because it conducts heat well Activity 1.2 Hard Rough Shiny Soft Smooth Dull Guide Questions: 1. What can you say about the objects you gathered? 2. Are they still usable? 3. Which of those materials are soft? 4. Which of those materials are hard? 5. Do all the objects have the same characteristics? 6. How did you classify the materials? 7. What did you learn in this activity 3
  • 4. Remember these: Materials have different properties that make them useful for different jobs. Here are some properties that materials have. Conductors Some materials are good conductors of heat. This means heat can travel through them easily. Some materials are good conductors of electricity. This means electricity can travel through them easily. Insulators Some materials are insulators of heat. This means they do not allow heat to travel through them very easily. Some materials are insulators of electricity. This means that electricity cannot travel through them. 4
  • 5. Lesson 2: Useful and Harmful Properties of some Materials Activity 1: “ Helpful vs. hazardous materials” Objectives: 1.Determine whether the material is useful or harmful. 2. Group the materials according to their uses. 3. Practice safety precautions in the use of certain materials. What you need: Activity sheets and ballpen What to do: 1. Form a group and choose among your group who will act as recorder, leader, and presenter. 2. Get from your teacher the materials to be used for the activity. 3. Listen to the instructions to be given by your teacher. 4. Instruct the pupils to do activity 1.1 and activity 1.2 5. In activity 1.1 group the household materials written below according to their uses, then write the most appropriate heading. 6. In activity 1.2 study the objects in the picture and determine whether the material is useful or harmful to humans. 7. Discuss your answers with your group mates. 8. Copy the data chart in your science notebook. 9. Present your answer to the class. Activity 1. 1 Tomato sauce shampoo detergent Lotion sugar body soap Baby powder fish sauce bleaching solution Cologne cooking oil vinegar Floor wax disinfectant muriatic acid ___________ _____________ _____________ 5
  • 6. ___________ _____________ _____________ ___________ _____________ _____________ ___________ _____________ _____________ ___________ _____________ _____________ Actvity 1.2 Guide Questions: 1. What materials you usually use at home? 2. Why it is important to observe Safety precautions in using household materials? 3. What household materials have been improved by technology? 4. How will you know if household material is harmful? 5. As a Grade 5 pupil, what will you do to control hazardous effects of some household materials at home and in the environment? Remember these:  Household materials can be grouped as follows: those used for cleaning and food preparation, beautification, building construction, and household product.  Materials (found in products) like metal, wood, ceramic, rubber, glass, or plastic have specific properties. 6
  • 7.  Materials are improved by technology. Improvements on products like soaps, detergents, plastics, paints, and stainless metals make life more comfortable.  Technology has improved our household tasks through the use of machines, like grinders, washers, and cooking and cleaning machines.  Outside our homes, we benefit from materials that technology has made possible, electronics for communication, and advanced machines for medical examinations.  Materials have beneficial effects in the home and the environment. They can make cooking faster. They can keep our homes and clothing clean and safe from insects.  Materials can sometimes do harm. They cause sickness. 7
  • 8. Lesson 2: Changes that Materials Undergo Activity 1: What Happens to Food Inside Our Body? Objectives: 1.Describe what happens in the food inside our body in the presence of oxygen. 2. Awareness of what oxygen can do. 3.Investigate the changes that happen in the food inside our body in the presence of oxygen. What do you need: Information about oxygen and food What to do: Read the information below. Interpret the second bullet through drawing a picture. Remember:  Oxygen is a part of the air that surrounds us. It is used by the body to continue life. It also has effects on different materials.  Digested food is metabolized or used up in the body by combining with oxygen. This process releases energy from the food so that the body can use it for biological processes or for work.  People and animals use oxygen in respiration. As oxygen is inhaled, some materials inside the body combine with it and undergo a chemical reaction that gives off carbon dioxide, water and energy.  This example given undergo the process of chemical change. Activity 2: What Happens to Materials Inside Our Body? Objectives: 1.Describe what happens in the materials inside our body in the presence of oxygen. 2. Awareness of what oxygen can do. 3.Investigate the changes that happen in the food inside our body in the presence of oxygen. What do you need: Information about oxygen and materials inside our body What to do: Read the information below. Interpret the third bullet through drawing a picture. 8
  • 9. Remember:  Oxygen is a part of the air that surrounds us. It is used by the body to continue life. It also has effects on different materials.  Digested food is metabolized or used up in the body by combining with oxygen. This process releases energy from the food so that the body can use it for biological processes or for work.  People and animals use oxygen in respiration. As oxygen is inhaled, some materials inside the body combine with it and undergo a chemical reaction that gives off carbon dioxide, water and energy.  This example given undergo the process of chemical change. Activity 3: What Makes the Apple Turn Brown? Objectives: 1. Describe the changes that happen in materials under the condition of presence of oxygen 2. Awareness of what oxygen can do. 3. Investigate changes that happen in materials under the condition of presence of oxygen What do you need: one half of apple What to do: 1. Get the one half of the apple. 2. Observe its color. 3. Recall its color when you have just cut it. 4. Fill out the table below. Then, answer the questions that follow. 1.Is the present color of the apple really different from its color when it was freshly cut? 2. What makes the apple change its color after cutting and setting it aside? 3. What does the discoloration of food mean? 4. What kind of change is it? Color of the freshly cut Color after it was left aside 9
  • 10. Remember:  Oxygen is a part of the air that surrounds us. It has effects on different materials.  Some fruits like apple, turnips, mango, etc. and some root crops like sweet potato, eggplant, etc. have enzymes which when combined with water gives it brown color, a sign of food spoilage.  Iron when combined with oxygen form rust. This is the start of the decay of a metal.  This example given undergo the process of chemical change. Activity 4: Why Does the Iron Turn Yellowish Brown? Objectives: 1. Describe the changes that happen in materials under the condition of presence of oxygen 2. Awareness of what oxygen can do. 3. Investigate changes that happen in materials under the condition of presence of oxygen What do you need: picture of new and rusting chains (if real chains are available, much better) What to do: 1. Observe the new and rusting chain. 2. Compare the colors. 3. Write your observation on the table. 1 . I s t New Chain Rusting Chain 10
  • 11. he present color of the iron chain really different from its color when it was new? 2. What makes the iron chain change its color after sometime? 3. What does the discoloration of iron mean? 4. What kind of change is it? Remember:  Oxygen is a part of the air that surrounds us. It is used by the body to continue life. It also has effects on different materials.  Some fruits like apple, turnips, mango, etc. and some root crops like sweet potato, eggplant, etc. have enzymes which when combined with water gives it brown color, a sign of food spoilage.  Iron when combined with oxygen form rust. This is the start of the decay of a metal.  This example given undergo the process of chemical change. Activity 5: Is the Paper Still the Same? Objectives: 1. Describe the changes that happen in paper. 2.Carefulness in doing things. 3. Investigate changes that happen in paper. What you need: piece of paper What to do: 1. Crumple a piece of paper. 2. Fold it. 3. Cut it into pieces. Material What did you do? What happened to it? Is it still the same? Remember:  When the paper is crumpled, folded or cut, it changes in size, shape, texture and appearance but it still remains the same material.  Materials change even under the condition of lack of oxygen.  Matter could be changed physically.  In physical change, only the appearance of the matter changes and no new material is formed. 11
  • 12. Activity 6: Is the Rubber Band Still the Same? Objectives: 1. Describe the changes that happen in the rubber band. 2.Carefulness in doing things. 3. Investigate changes that happen in the rubber band. What you need: rubber band What to do: 1. Stretch the rubber band. 2. Cut it into pieces. Material What did you do? What happened to it? Is it still the same? Remember:  When the rubber band is stretched or cut, it changes in size, shape, and number of pieces but it still remains the same material.  Materials change even under the condition of lack of oxygen.  Matter could be changed physically.  In physical change, only the appearance of the matter changes and no new material is formed. Activity 7: Is the Stick Still the Same? Objectives: 1. Describe the changes that happen in the stick. 2.Carefulness in doing things. 3. Investigate changes that happen in the stick. What you need: stick What to do: 1. Cut the stick into pieces. Material What did you do? What happened to it? Is it still the same? Remember:  When the stick is cut into pieces, it changes in size and number of pieces but it still remains the same material.  Materials change even under the condition of lack of oxygen.  Matter could be changed physically. In physical change, only the appearance of the matter changes and no new material is formed.  In physical change, only the appearance of the matter changes and no new material is formed. 12
  • 13. Activity 8: Is the Piece of Chalk Still the Same? Objectives: 1. Describe the changes that happen in the piece of chalk. 2.Carefulness in doing things. 3. Investigate changes that happen in the piece of chalk. What you need: piece of chalk What to do: 1. Pound the piece of chalk. Material What did you do? What happened to it? Is it still the same? Remember:  When the piece of chalk is pound, it changes in size and number of pieces but it still remains the same material.  Materials change even under the condition of lack of oxygen.  Matter could be changed physically.  In physical change, only the appearance of the matter changes and no new material is formed. Activity 9: What change happens to ice when heated? Objectives: 1. Describe what happens to materials under the application of heat 2. Be cautious in using equipment that produce heat. 3. Investigate changes that happen in materials under the following condition: - Application of Heat What you need: aluminum saucer ice Alcohol lamp or improvised heater What to do: 1. Put ice on the aluminum saucer. 2. Place it on an alcohol lamp or improvised heater. 3. Continue heating until no ice can be seen. What did you observe? 13
  • 14. Remember:  Materials like water, egg and vegetables undergo physical change when heated.  When ice is heated, it turns to water.  Application of heat can cause physical change. Activity 10: What change happens to water when heated? Objectives: 1. Describe what happens to materials under the application of heat 2. Be cautious in using equipment that produce heat. 3. Investigate changes that happen in materials under the following condition: - Application of Heat What you need: beaker Water Alcohol lamp or improvised heater Plastic sheet cover What to do: 1. Pour the beaker with half water. 2. Place it on an alcohol lamp or improvised heater. 3. When the water boils, place a plastic sheet over the beaker to catch the steam. What did you observe? Remember:  Materials like water, ice, egg and vegetables undergo physical change when heated.  When water boils and bubbles appear on the sides, steam or water vapor goes up.  Water, when applied with heat, turns to water vapor.  Application of heat can cause physical change. Activity 11: What change happens to egg when heated? Objectives: 1. Describe what happens to materials under the application of heat 2. Be cautious in using equipment that produce heat. 3. Investigate changes that happen in materials under the following condition: - Application of Heat 14
  • 15. What you need: Egg Cooking oil Small pan Alcohol lamp or improvised heater What to do: 1. Place the small pan on an alcohol lamp or improvised heater. 2. Put some cooking oil on the pan. 3. Put the egg on the pan. 3. Continue heating until it cooked What did you observe? Remember:  Materials like water, egg and vegetables undergo physical change when heated.  Egg, when applied with heat, becomes solid.  Application of heat can cause physical change. Activity 12: What happened to sugar after heat is applied? Objectives: 1. Describe what happens to materials under the application of heat 2. Be cautious in using equipment that produce heat. 3. Investigate changes that happen in materials under the following condition: - Application of Heat What you need: Candles Spoon White sugar What to do: 1. Place the sugar on a spoon. 2. Place it on the lighted candle. 3. Continue until the sugar turns brown. Material What did you do? What happened to it? What was produced? 15
  • 16. Remember:  When the white sugar was heated, there was change in shape, color, smell and substance.  When sugar is heated, it turns to syrup.  Matter could be changed chemically due to application of heat.  In chemical change, the appearance of the matter changes and new material is formed. Activity 13: What happened to piece of paper when heat is applied? Objectives: 1. Describe what happens to materials under the application of heat 2. Be cautious in using equipment that produce heat. 3. Investigate changes that happen in materials under the following condition: - Application of Heat What you need: piece of paper Tin can matchstick What to do: 1. Burn a piece of paper inside a tin can. 2. Place it on the lighted candle until the sugar turns brown. Material What did you do? What happened to it? What was produced? Remember:  When the paper was burned, there was change in shape, color, smell and substance.  When paper is burned, it turns to ashes.  Matter could be changed chemically due to application of heat.  In chemical change, the appearance of the matter changes and new material is formed. Activity 14: What happened to matchstick when heat is applied? Objectives: 1. Describe what happens to materials under the application of heat 2. Be cautious in using equipment that produce heat. 3. Investigate changes that happen in materials under the following condition: - Application of Heat 16
  • 17. What you need: saucer matchstick What to do: 1. Get a matchstick and light it. 2. Place the lighted matchstick on a saucer. 3. Let it burn out. Material What did you do? What happened to it? What was produced? Remember:  When the matchstick was burned, there was change in color, smell and substance.  When matchstick is burned, it turns to charcoal.  Matter could be changed chemically due to application of heat.  In chemical change, the appearance of the matter changes and new material is formed. 17
  • 18. Lesson 6 – Recognized the importance of reuse waste management Activity 1: What are the importance of reuse waste management. Objectives: 1. Explain the importance of reuse in waste management. 2. Understand the meaning of Reuse in waste management 3. Identify the Reuse materials in waste management What you need: Gift wrapper, paper bags, Wrapper, detergent bottle, Plastic bottle, leaves, Plastic Empty cans, Vegetables, Fruits peeling, Candy wrapper, Plastic bag, old clothes Tires, Empty boxes of medicine, and juice wrapper, What to do: Caution: be careful in handling the reusable waste and do not play with these materials. 1. Go to the working base assigned to each group. 2. Listen to the instruction given by the teacher. 3. When necessary, use hand gloves in handling materials in your base. 4. Identify the reusable waste that you found in each bases. 5. Know the importance of the reusable waste. 6. Record in your data chart all the reusable waste that you see in your base. 7. Present your output in class. Reusable waste Guide Questions: 1. What are the reusable wastes that found in your home? 18
  • 19. 2. What are the reusable materials commonly found in the public market? 3. What are the reusable wastes commonly found in the school? 4. Give an example of reusable materials? 5. It is important to reuse waste material? Why? 6. What insights did you gain in this activity? Remember these: REUSE=> Donate or sell re-usable items.  Use both sides of paper and printing and re-use as scratch paper, gift wrapper, etc.  Consider the potential life span or durability when buying new products.  Buy durable food/storage containers and reuse them instead of using foil, plastic bags/wrap.  Materials that can be reuse are empty cans, bottle of all sizes, cups plates, glasses, broken iron grills, wood parts of furniture, medicine vials, cosmetic bottle, and trays.  The importance of reuse is to prevent solid waste from entering the landfill, improve our communities, and increase the materials. 19
  • 20. Lesson: 5 Recognized the importance of Recycle and Reduce waste Management Activity 1. What are the importance of recycle and reduce waste management? I.Objective: 1. Recognize the importance of recycle and Reduce in waste management. 2. Differentiate between the meaning of recycle and reduce in waste management. What you need: Trash Bin filled with trash, for example scrap paper, tin cans, toilet paper rolls, empty Kleenex boxes, empty milk cartons, empty pop bottles, tin foil and newspaper. What to do: 1. Divide the class into two groups. 2. Listen to the instruction given by the teacher 3. Use hand gloves in handling waste materials. 4. Each group take a few items out of the garbage can and move to their own area. 5. Have them jot down some points on how they might use the 2 R’s on the items they’ve chosen. 6. Have them write down their ideas and which of the 2 R’s they’re using. 7. Identify the importance of recycle and reduce 8. Let the pupils do lesson 5: Activity 1 in the LM 9. Supervise the pupils while they are doing the activity. 10. Prepare a group presentation to be performed in class. Guide Question: 1. What are the recyclable materials found in the garbage can or trash bin? 2. What are the materials that can be recycled? 3. What are the materials that can be reduce? 4. Differentiate between Recycle and reduce? 5. Give another example of recyclable materials. 6. Why is it important to recycle and reduce waste? 20
  • 21. 7. What did you learn in this activity? Remember These: Reduce=> make less garbage. For example, instead of buying juice boxes for lunch, buy a large container of juice and use a washable single serving container to take it to school. => buy items in refillable containers  Use cloth bag/eco bag/paper bag/native baskets instead of plastic bag, when you buy groceries.  Avoid buying disposable items or single use products such as batteries, razors, utensils, plates, cups etc.  Reducing is important because they decrease the amount of waste on the planet and preserve natural resources by maintaining space and cutting down on landfills.  Reduce consumption of new material and save energy. Recycle=> turn an item into another useful item. For example, scrap paper from the classroom might be turned into newspaper or paper bags when sent to the recycling plant.  Do not throw away used newspapers or used writing pads. Sell them or bring them into usable paper again.  Use bottles, tin cans rubber tires can be recycled into useful materials. 21
  • 22. Lesson: 7 Recognized the importance of recover and repair in waste management Activity 1 What are the importance of recover and repair in waste management I.Objectives: 1. Discuss the importance of recover and repair in waste management. 2. Differentiate between recover and repair in waste management. 3. Identify the recover and repair materials What you need: Recyclable, appliances, office equipment, furniture, and automotive parts. What to do: 1. Go to the respective station. 2. Provide each group with LM__ 3. Have them work on lesson 7:LM Activity 1 The importance of recover and repair waste management. 4. List down the recover and repair waste materials 5. Remind each group that they will be presenting their output. Guide Questions: 1. What are the waste materials commonly found in the hospital? 2. What are the waste materials commonly found in the market? 3. Which material can be recover and repair? 4. Were all the materials are disposable? 5. Are these wastes materials that can be reused? 6. Is it important to recover and repair the waste materials? Remember These: Recover => Any waste that can’t be reused, recycled or avoided in the first place (i.e. reduced) can be used to make heat and power using incineration, anaerobic digestion or other tecniques. By recovering the energy left in our rubbish we extract maximum value whilst landfill. Repair => have appliances, office equipment, lighting fixtures, and automotive parts repaired instead of buying new ones. Have an old furniture reupholstered or refurbished instead of buying ones. 22
  • 23. Chapter 2: Changes that Materials Undergo Lesson 8: Recyclable materials in making useful products Activity 1: “How will I classify local materials that can be reuse, reduce and recycle?” Objectives: 1. Identify local materials that can be recycled. 2. Classify materials that can be reuse, reduce and recycle What you need: 3 sets of bin (reduce reuse recycle) Plastic drinking bottle tissues Juice wrappers paper towels Old newspapers/magazines Styrofoam Soft drinks cans plastic bags Scrap papers pesticides What to do: 1. Split the class into 2. 2. Prepare the materials needed for the activity.(3 sets of bins) 3. Collect all the solid wastes from the pupils into a corner of the room. 4. Each group will sort the materials according to their properties. 5. Member of the group will pick one item and put in the proper bin. 6. Observe and describe the characteristics and properties of the materials. 7. Identify each of the materials whether they are recyclable or not. 8. Classify the materials that can be reduce, reuse and recycle. 9. List down the identified materials in a chart. reduce Reuse recycle Guide Questions: 1. What materials did you use in the activity? 2. What are the properties of each of the waste materials? 3. How did you sort the materials? 4. How did you classify them? 5. Are these materials can be made into useful products? 23
  • 24. Remember these:  Waste management is the precise name for collection, disposal or recycling of wastes.  Proper segregation of waste materials should be observed.  Classifying materials is important to know whether the materials is to be reduce, reuse or recycle in making useful products.  We can create a useful product out of recyclable materials. 24
  • 25. Chapter 2: Changes that Materials Undergo Lesson 9: Product out of local recyclable solid materials Activity 1: “What useful product can be made out of recycled materials?” Objectives: 1. Identify local recyclable solid materials that can be used in making useful product 2. Explain ways in making useful materials and products 3. Design a product out of local recyclable solid materials What you need: Tin cans Glue Plastic drink bottles Scissors Cardboard/boxes Paint Old newspapers/magazines Paint brush Juice/candy wrappers What to do: 1. Divide the pupils into five groups. 2. Provide the materials equally to every group. 3. Set the standards to be followed while doing the activity. 4. Sort the materials that can be reduce, reuse and recycle. 5. Ask each group to dream up a product that consist only of recyclable materials. 6. Have them begin by brainstorming ideas and draw diagrams of the product. 7. Make your own product out of the local materials that they have 8. Remind each group that they will be presenting their output in class after the activity. Guide Questions: 1. What materials did you use in the activity? 2. What can you say about the materials you gathered? 3. Which of the materials can be recycled? 4. How did you classify the materials? 5. What useful product did you create out of the recyclable solid materials? 6. What is the importance of recycling in waste management? Remember these:  Recycle is to make something new from something that has been used before.  Recycling is important to conserve raw materials and reduce the need to consume other precious resources.  Recyclable solid local materials can be made into useful products. Example: plastic drinking bottles can be made into flower vase or pots Juice wrappers can be made into bags Old newspaper and magazines can be made into pencil holder Used clothes can be recycled into rags and throw pillows. 25
  • 27. Second Quarter Chapter III: Parts and Functions (Humans) Lesson 10: How the parts of the Human reproductive system work Objectives: 1. Describe the functions of each part of the male and female reproductive system 2. Identify the parts of the male and female reproductive system. 3. Show appreciation on the structure and capabilities of each part of the male & female reproductive system What you need: Illustration of the male/female reproductive system Manila paper,pentel pen, Day 1 - 3 What to do: Activity 1. 1. The leader will get materials to be used from the teacher 2. The whole group will listen to the instructions given by the teacher. (Viewing session regarding male/female reproductive system) 3. Write the important data about the topic. Guide Questions: 1. What are the male parts? 2. What cell is produced? 3. Where does it produced? 4. Describe the cell inside the male reproductive system. 5. What makes the parts similar in function? 6. What makes them differ? 7. What are the major female reproductive organs? What are their functions? 8. What are estrogen and progesterone? What do they do? 9. If you will observe the illustration of the female reproductive organs, how will you describe its structure. 10. How important these parts to the female reproductive system? 2
  • 28. Activity 2: Label the diagrams below, and write the functions of each part of the reproductive system of a male. Day 4 & 5 Activity 3 Identify the parts of male/female reproductive system and give the function of each part . Parts Functions a. b. c. d. e. Remember these:  The male reproductive parts are composed of the testicles or testes, scrotum, epididymis, vas deferens, seminal vesicle, prostate gland, Cowper’s gland, penis and urethra.  Each part has specific functions.  Let the pupils describe each the function of each part of the male reproductive system.  The female reproductive parts are the: 1. Cervix known as the birth canal, 2, Uterus allows sperm to enter and menstrual blood to exit, 3. Ovaries produce eggs and hormones; 4. Fallopian tubes serve as tunnels for the ova to travel from the ovaries to the uterus;  The female reproductive system is designed for conception, pregnancy and childbirth. 3
  • 29. Lesson 11: Physical Changes during Puberty I. Objectives 1. Describe physical and socio-emotional changes in males and females during puberty. 2. List down the physical and socio-emotional changes in males and females during puberty. 3. Discuss the physical changes of male/female at puberty 4. Show awareness in body changes during puberty. What you need: Boys and girls in the class Pictures of boys and girls Manila paper, pentel pen Activity 1 What to do: 1. Observe the ages of boys and girls in your class. 2. Observe the physical characteristics that make them different from one another. 3. Write the physical changes that you observe among boys and girls. Guide Questions: 1. What are some characteristics among boys/girls? 2. Are there similar characteristics similar for both boys and girls? 3. At what age do these characteristics usually appear? Activity 2 List down changes that occur in boys/girls during puberty. Boys Girls Physical Changes Socio-emotional Changes Physical Changes Socio-emotional Changes 4
  • 30. Activity 3 Let the pupils create a simple skit about the changes that occur in boys/girls during pubertal stage. Remember these:  During puberty, a girl’s body begins to develop and take the form of a woman.  Girls grow taller, their breasts grow fuller, and their hips wider. At this stage, pubic hair appears and menstruation starts.  The ovaries start to produce egg cells.  Boys grow slower than girls but attain more height because their longer stage of puberty than girls.  They develop low pitched-voice, broad shoulders, and a bigger Adams Apple.  Hair begins to grow under arms, on the face, face and genitals. The testis start producing sperm cell. 5
  • 31. Activity 1:”What is a Menstrual Cycle?” Objectives: 1.Explain what a menstrual cycle is. 2.Relate the menstrual cycle of the female to the ability to get pregnant. What you need: Diagram of a menstrual cycle Activity sheet Manila paper Marking pen What to do: 1.Each group will be given a photocopy of a diagram of the menstrual cycle. 2.Brainstorm and make a simple discussion about a menstrual cycle and the relation of the menstrual cycle of the female to the ability to get pregnant. 3.Write your answers on the manila paper using marking pen. Guide Questions: 1.Explain why it is called a menstrual cycle . 2.When does the menstrual cycle begin? 3.Relate menstrual cycle to the ability to get pregnant? Remember these: 1.Menstrual cycle is a monthly series of hormonal changes leading to egg maturation and uterine preparation for a possible pregnancy. 2.Menstruation is the stage of the menstrual cycle usually lasting from three to five days during which blood,some uterine tissue,and the unfertilized egg are expelled from the uterus through vagina. 3.Menopause is a period when the menstrual cycle of the human females ends , usually occurring in the 40s. 6
  • 32. Activity 1:’How to Take Care of Your Reproductive System” Objectives: 1.Give ways of taking care of the reproductive system. 2.Take precautionary/safety measures to keep the reproductive organs healthy. What you need: manila paper ,marking pens ,checklist of various health habits What to do: 1.Each group should have a checklist on taking care of the reproductive system. 2.Each member will check the column that describes how much they take care of their reproductive organs. 3.The group representative will count all the score in each item. Checklist:Check the column that tells describes how much you take care of reproductive organs Health Habits 1.I take a bath everyday. 2.I wash my sex organs with soap and water 3.I wear a clean underware. 4.I change my underwear as often as needed. 5.I wash my underwear very well. 6.I wear only my own underwear. 7.I keep my underwear in a clean cabinet. 8(Girls)I only use sanitary napkins which are safely made and kept. 9.(Girls)I wash my sex organ from front to back. 10.Take a full bath. Always(5) Seldom(3) Never(1) 7
  • 33. Guide Questions: 1. Which of these health habits have you scored poor?why? 2. Which of these health habits do you practice? 3.Which of these do you not practice? 4.Are you taking good care of your reproductive organs?Why? Remember these : Proper Care of the Reproductive System 1.The external parts of your reproductive system need proper care and hygiene.Keep them clean at all times through frequent washing with soap and water. 2.Use clean and comfortable underwear. 3.Maintain an ideal body weight and get enough physical exercise to allow your reproductive organs to develop normally. 4.Refrain from indulging in physical activities that may cause direct physical injury to your reproductive organs. 5.Girls must practice proper care and good personal hygiene during menstruation.Sanitary napkins should be comfortable and changed often during heavy menstrual flow. 6.Eat the right food and take sufficient vitamins and minerals to keep your reproductive system healthy. 8
  • 34. Lesson 14: Reproductive parts and functions and mode of reproduction of representative animals Activity 1: What are the different parts of reproductive system of representative animals? Objectives: 1. Identify the different parts of reproductive system of mosquitoes, frogs, cats and dogs What you need: 8 Colored Cartolina Pentel Pen Ruler Strips of reproductive parts of representative animals (Butterfly, mosquitoes, frogs, cats and dogs) What to do: 1. Divide the class into five groups and assign a leader or representative to lead the group. 2. Give them the materials needed for the activity. 3. Instruct them to connect the different parts to form specific reproductive system. Allow leaders to indicate number on each strip/part. 4. Paste the strips to form reproductive system Chart 1 Chart 2 Reproductive System of Female Mosquito Parts Chart 3 Chart 4 Reproductive System of Female Frog Parts Reproductive System of Male Mosquito Parts Reproductive System of Male Frog Parts 9
  • 35. Chart 5 Chart 6 Reproductive System of Female Cats Parts Chart 7 Chart 8 Reproductive System of Female Dog Parts Reproductive System of Male Cats Parts Reproductive System of Male Dog Parts 10
  • 36. Guide Questions: 1. Did the structures of male and female reproductive parts of each representative animal the same? If not, identify those parts that are often seen from the charts both male and female. 2. Did you connect each part appropriately? 3. What would happen if one of the parts for male and female reproductive system is missing? 4. Which of the common part of female reproductive system receives the spermatozoa? 5. Among the given parts, which of them conveys the semen out from the male reproductive organ? Remember these: A reproductive system is an organ system for the creation of offspring. Most of the animals have in common parts for reproductive system both male and female. Mammals’ reproductive system is more complex than insects and amphibians The vas deferens these (there are two) follow the urethras and transport the spermatozoa from the testicles and the epididymis to the copulatory organ. 11
  • 37. Activity 2: What are the functions of reproductive system’s parts of representative animals? Objective: Explain the functions of reproductive system’s parts of butterfly, mosquitoes, frogs, cats and dogs. What you need: Manila paper Pictures of reproductive system What to do: 1. Divide the class into four groups. 2. Each group should have specific picture of reproductive system with corresponding Meta- Cards(functions of parts of reproductive system). a. Group 1- Frog b. Group 2- Mosquito c. Group 3- Cat d. Group 4- Dog 3. Brainstorm and make an observation as to what function is really appropriate for specific part. 4. Ask the leader and members to paste their answers on the manila paper. ANIMAL PARTS FUNCTIONS Guide Questions: 1. What are the functions of male and reproductive system for the assigned representative group of animals? 2. Write a short note about the function of the following:  Uterus  Vas deferens  Seminal vesicle  Ovarioles 3. Distinguish between the primary and accessory male reproductive organs of mosquito, frog, cat and dog. 12
  • 38. 4. Distinguish between the primary and accessory female reproductive organs of mosquito, frog, cat and dog. 5. Trace the path of the vas deferens from the epididymis to the ejaculatory duct. Remember these: Activity 3: What is the mode of reproduction of butterfly, mosquito, frog, cat and dog? Objective: Describe the mode of reproduction of butterfly, mosquito, frog, cat and dog. What you need: Live Butterfly, mosquitoes, frogs, cats and dogs (if possible) Pictures of representative animals: The female reproductive system has two functions: The first is to produce egg cells, and the second is to protect and nourish the offspring until birth. Reproductive system is a collection of internal and external organs in both males and females that work together for the purpose of procreating The male reproductive system has one function, and it is to produce and deposit sperm. 13
  • 39. What to do: 1. Divide the class into five groups. Ask them to choose a leader. 2. Provide them the pictures of representative animals (Butterfly, mosquitoes, frogs, cats and dogs 3. Ask them to follow the standards in performing the activity. 4. Allow them to list down some of the external features of the animal which will compliment to the mode of reproduction. 5. Use the chart to record your answer. ANIMAL EXTERNAL FEATURES MODE OF REPRODUCTION 1. 2. 3. 4. 5. Guide Questions: 1. Do external features of an animal define what kind of mode of reproduction it manifests? 2. How does sexual reproduction differ from asexual reproduction? 3. What are the processes in sexual and asexual reproduction? 4. Do they manifest the same mode of reproduction? 5. Aside from the given animals, give 3 other animals with the same mode of reproduction. Remember these: 14
  • 40. Activity 4- What activities do butterfly, mosquito, frog, cat and dog manifest prior to reproduction? Objective: Perform a stage play manifest by the butterfly, mosquitoes, frogs, cats and dogs prior to reproduction What you need: Video clips Localized materials necessary for props making resembling animals What to do: 1. Divide the class into five groups and assign a particular animal for their activity. 2. Let them watch a video clip showing significant activities prior to reproduction. 3. Ask the group to create a story in relation to the activities of an animal before the reproduction stage. 4. Give them an ample time to finish the activity. 5. Instruct the leaders to involve all members in the stage play. Guide Questions: 1. What was your activity all about? 2. What conspicuous activities have shown of each animal prior to reproduction stage base from the video clip or stage play? List them in an order manner. 3. Do they manifest the same activity? 4. Relate their activities to human before the reproduction stage. Remember these: Reproduction involves the transfer of genetic material from parent to offspring. Sexual reproduction is the production of a new organism from two parents. A sperm cell from a male and an egg cell from a female join into a single unit in a process called fertilization. Dogs,cats, butterflies, mosquitoes, and frogs reproduce sexually. Fertilization in dogs and cats takes place inside the female’s body (internal fertilization). Fertilization in frogs happens outside the body; that is, in water where they live (external fertilization) 15
  • 41. Reproduction in butterflies begins with courtship, during which the male vigorously flaps its wings, releasing a dust of microscopic scales carrying pheromones above the female's antennae. These male pheromones act as a sexual stimulant to the female. Some males release additional pheromones from "hair pencils" under the abdomen. Female butterflies that are ready to mate dispense with courtship. A female will display certain behaviors during heat. ir head or neck on objects associa - tail raised, rear end elevated follow their owners around very persistently when in heat 16
  • 42. Lesson 1: Reproductive Parts of Plant Objectives: 1. Describe the reproductive parts in plants. 2. Identify each functions. What you need? Activity sheets What to do? Group Activity: ( Female and male Reproductive Organ of a Flower) Each group will be given one folder consisting of words. They are going to arrange the words according to where it is belong male or female reproductive part of the flower. Complete the column below: Male Female 17
  • 43. Guide questions: 1. What are the parts of the flower? 2. What are the female reproductive part? 3. What are the male reproductive part? 4. What are their specific functions? Remember this: The female parts of a flower consist of an ovary, which contains one or more ovules, a style and the stigma. The ovary is at the base of the flower.From the ovary, extends a tubular structure called the style and on the top of the style is a surface receptive to pollen called the stigma.The stigma can take many different forms, most of them designed to help trap pollen. There are many variations on this basic structural theme.After fertilization the ovule becomes the seed and the ovary becomes the fruit. The male parts of a flower consist of one or more stamens. Each stamen is made up of paired anthers (sacs containing pollen) on a filament or stalk.The anthers are the orange/yellow structures often seen in the centre of a flower.Pollen from the anthers of one flower is transferred to the stigma of another usually either by wind, or by animals, especially insects. The reproductive structures in higher plants are contained within flowers. Flowers have more than one petal, and the flower petals are collectively called the corolla. A flower bud is protected by green leafy structures called sepals. Collectively, all of the sepals form the calyx.The corolla or petals are often brightly coloured with markings attractive to insects. The flowers may also be scented. For instance, Honeysuckle has showy, attractive flowers which attract insects by day. However, in the dark, their colourful show is not much use, and their heady scent then helps to attract night-flying moths.In insect-pollinated plants, there are also usually nectaries which secrete sugary nectar, located within the flower. These provide an incentive to insects to visit 18
  • 44. the flowers. In the search for nectar, the insects will often get pollen grains caught on their bodies. This may then brush off onto the stigma of the next flower visited and in this way the flowers are pollinated.The receptacle is the place on the stem where floral organs originate and attach. 19
  • 45. Lesson 2: Modes of Reproduction in Flowering and Non- flowering Plants Activity1: “ What are flowering plants and non-flowering plants” Objectives: 1. Identify flowering plants and non-flowering plants. 2. Appreciate the creation of God. What you need? Camera Paper and pen What to do? A. Field Trip 1. In preparation for going outside, teacher leads discussion about appropriate behaviours and safety precautions. a. Personal Safety b. Safety of others c. Care and Respect for the environment 2. Bring pupils to the school garden. 3. Instruct them to go to the school garden in pairs. 4. Guide the pupils an observation strategies: a. Identifying the name of plant . b. Classify plants as to flowering or non-flowering plant. 20
  • 46. 5. Tell pupils to start on their investigation on the plants found in the school garden. Guide them to observe the appearance and body parts.They can even bring cameras with them and take photos of the plants they saw. 6. Throughout the field observation. Observe and give specific feedback relevant to what the pupils are expected to do. 7. When the pupils are finished, tell them to leave the area without picking any specie or live plants. 8. Return to the classroom. Guide questions: 1.What are flowering plants? 2. What are non-flowering plants? 3. What are some characteristics of flowering and non-flowering plants? 4. Write your answer on the given table. Flowering Non-flowering 21
  • 47. Remember this: Flowering Plants As you know, Flower is the reproductive organ of the plant. Flowers can be composite orsimple. Anyway using flower as the classification criteria makes this a natural classification. Flowering plants are also known as Angiosperms. Angiosperms There are many characteristics of Angiosperms as mentioned below. • Angiosperms are plants that have flowers and their reproduction is done by flowers. • All flowering plants produce seeds. and it is covered by a fruit. • Angiosperms have complicated flowers with complicated structure. • These are the most developed plants in the world. • There are 2 types of Angiosperms namely Dicotyledonous Plants andMonocotyledonous plants. 1. Dicotyledonous Plants Dicotyledonous flowering plants are the widely expanded around the world. The seed of this type of plants have 2 cotyledons inside it. Also the root system has a long tap root. The leaves have webbed veins and the flowers have 5 or multiple of 5 petals.Examples for Dicotyledonous plants Jak, Mango, Lemon, Apple, Tomato 2. Monocotyledonous Plants Monocotyledonous flowering plants are very few when compared to dicotyledonous plants. These plants don’t have a tap root system, but a fibrous root system. The seed has only 1 cotyledons and the veins of the leaves are parallel. Number of petals in the flowers are 3 or multiples of 3.Examples for Monocotyledonous plants Coconut, Wheat, Palm, Rice, Garlic Non-Flowering Plants Non-flowering plants do have reproductive organs available in the flowers, but these are not complicated as Dicotyledonous flowers. We can further classify non-flowering plants as with seeds and without seeds. 22
  • 48. Gymnosperms Gymnosperms are plant with seeds and the embryo is inside a seed. The seed is not covered not not enclosed in a fruit. These are the less advanced type of seed plants.Examples for Gymnosperms plantsYews, Ginkgo, Cycads, Conifers, Pine Bryophyta Bryophyta doesn’t have seeds. There are so many species under this type and body of the plant may be a thallus. Sometimes they do have leaves. There are no true roots, but roots like structures available. These are also known as Rhizoids and grow on moist walls and ground.Examples for Bryophyta plants Mosses, Liverworts, Hornworts, Marchantia, Poganatum Pteridophyta – Ferns Stem of these plants may be an underground rhizome or an Arial stem that grows straight. These have well developed Xylem and Phloem vascular tissues. The leaves have spores and also don’t have seeds.Examples for Pteridophyta plants Nephrolepis 23
  • 49. INTERACTIONS AMONG LIVING THINGS IN ESTUARIES AND INTERTIDAL ZONES Activity 1: “What is the difference?” Objectives: 1. Identify freshwater ecosystem from saltwater ecosystem or Estuaries What You Need: (by group)  2 kind of plants  2 containers of tap water  1 tbsp. of salt  Stirrer  Pebbles  Manila paper What to Do: 1. Let the pupils accomplish the following activity by group named Saltwater vs. Freshwater 2. Fill a container with tap water and another one with salt and water then stir. Label each container with saltwater and freshwater. 3. Place plants in each container, examine each plants after two hours. 4. Allow each group to work on the activity in the designated station. 5. Give each group at least 1 whole sheet of manila paper where they can write their observations and answer to the different guide questions. 6. Ask a representative of each group to post their observations and answers to the different questions on the board. 24
  • 50. Guide Questions: 1. What happen to the plant when you put in salt water? fresh water? 2. Why does the plant in salt water withered? 3. Why does the plant in fresh water stays the same? 4. What is the explanation behind this? Remember these:  Ecosystem formed by the interaction of a community of organisms with their environment.  Estuaries is the boundary where a freshwater ecosystem meets a saltwater ecosystem.  Intertidal Zone is the shallowest part of the ocean ecosystem, where the ocean is covered and uncovered as the tide goes in and out. Activity 2: “Are you in or out?” Objectives: 1. Construct food chains and webs to show feeding relationships among living things. What You Need:  Illustration of intertidal zone  Manila paper What to Do: 1. Using the manila paper, copy the table and write the animals that fall into producers, consumers, scavengers, and decomposers. 2. Record your observations in your manila paper using the table below. 25
  • 51. PRODUCERS CONSUMERS SCAVENGERS DECOMPOSERS 1. 2. 3. 4. 5. Guide Questions: 1. What can you see in the picture? 2. What are the living things found in the picture? 3. What did you notice with the ocean water ecosystem? 4. Why does the ocean floor is covered and uncovered as the tide goes in and out? Remember these:  Intertidal zone is the shallowest part of the ocean ecosystem where the ocean floor is covered and uncovered as the tide goes in and out.  Producers are organism that capture energy and use it to producefood from inorganic compounds.  Consumers are organism that eat other organisms.  Scavengers are consumers that eat the bodies of already-been-killed animals.  Decomposers are breaks down remains of dead organisms 26
  • 52. Chapter 3: Electricity and Magnetism Duration: 10 days Day 1 I. Objectives 1. Identify the kind of materials that make up a good electromagnet 2. Identify the ways by which the materials can be connected to produce a good electromagnet. 3. Construct a simple electromagnet 4. Show perseverance and interest in observing how electromagnets are connected II. A. Materials: nails big and small Thin copper wire Big copper wires Dry cells big and small B. References: CG S5FE-III i-j-9 Science and Health p.162 Science for Daily Use pp.160-161 https://www.google.com.ph/#q=activity+on+electromagnets C. Process Skills: Observing Comparing Inferring D. Values Integration Resourcefulness in producing recycled materials Patience in using and connecting different materials III. Learning tasks A. Engagement Show picture of 3 kinds of knives to be used in slicing vegetables for vegetable salad. Ask the following questions: 27
  • 53. 1. Which knife do you prefer to use in preparing vegetable salad? Why? 2. Is it important to use appropriate materials? B. Exploration 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 1 of LM C. Explanation Day 2 Exploration 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 2 of LM EXPLANATION Background information An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. You have just made a magnet by using electricity. When you disconnected one end of the wire from the battery, the current did not flow anymore. The nail could no longer attract the pins. Its magnetic force was gone. An electromagnet can have magnetic force only when electric current is flowing through it. 28
  • 54. Day 3 EXPLORATION 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 3 - electromagnets of LM EXPLANATION Day 4 EXPLORATION 1. Divide the class into 4 groups Background information An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. You have just made a magnet by using electricity. When you disconnected one end of the wire from the battery, the current did not flow anymore. The nail could no longer attract the pins. Its magnetic force was gone. An electromagnet can have magnetic force only when electric current is flowing through it. Important or ideal materials in producing a good electromagnet are the following: Nail – is the core around which the wire is coiled Wire- the conductor where the current flow Battery-supplies electric current Background information An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. You have just made a magnet by using electricity. When you disconnected one end of the wire from the battery, the current did not flow anymore. The nail could no longer attract the pins. Its magnetic force was gone. An electromagnet can have magnetic force only when electric current is flowing through it. Important or ideal materials in producing a good electromagnet are the following: Nail – is the core around which the wire is coiled Wire- the conductor where the current flow Battery-supplies electric current 29
  • 55. 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 4- electromagnets of LM EXPLANATION Day 5 ELABORATION/EXTENSION Draw a line to connect the materials to the box for like if the material is good for constructing an electromagnet, unlike if is the material does not make a good material for electromagnet. ` Thin copper wire Small nail Small battery Big nail Big battery like unlike e Background information An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. You have just made a magnet by using electricity. When you disconnected one end of the wire from the battery, the current did not flow anymore. The nail could no longer attract the pins. Its magnetic force was gone. An electromagnet can have magnetic force only when electric current is flowing through it. Important or ideal materials in producing a good electromagnet are the following: Nail – is the core around which the wire is coiled Wire- the conductor where the current flow Battery - supplies electric current 30
  • 56. EVALUATION Put a check on the statement that shows a good component of an electromagnet. 1. A good electromagnet is composed of a small battery, big nail and a big battery. 2. A good electromagnet is composed of thin wires, big nail and small battery. 3. A. good electromagnet is composed of a small battery , small nail, thin wires. 4. A good electromagnet is composed of a big battery , small nail, thin wires. 5. A good electromagnet is composed of a big battery , small nail, thin wires. IV. ASSIGNMENT Look for any device at home that you no longer use like malfunctioned remote control. Inspect the part that may have caused malfunction. Write it down and report to the class. Day 6 I. OBJECTIVES 1. Conduct an experiment to show variables that affect the strength of an electromagnet. 2. Conduct a simple and useful electromagnet. 3. Name the different uses of an electromagnet. II. A. Materials: Batteries of four different volts pencil thin, insulated wire. Copper wire nails B. References: CG S5FE-III i-j-9 Science spectrum5 pp.200-201 https://www.google.com.ph/#q=activity+on+electrom agnets C. Process Skills: Observing 31
  • 57. comparing Calculating Interpreting data D. Values Integration Honesty and accuracy in recording data III. Learning tasks A. ENGAGEMENT: Form 2 groups of boys versus girls. Play the tag of war game. Form 2 lines. Wind your arms around the waist of a group member in front of you. The boy and the girl in the front line will pull each other hands, see whose group is the toughest. After the game the teacher will inspect which group has the higher number of members and whose group has won. Relate the activity to the strength of an electromagnet later. Review: Inspect the three illustrations. Which picture show correct connection of an electromagnet? Why? 1. 2. 3. Answer the following questions with true or false _____1. Carefulness and accurateness in connecting the materials is very important factor in having a good electromagnet. _____2. Any metallic material can be used as part of a electromagnet. _____3. It is better to use big batteries for big nails. _____4. Wire must be winded tightly on nails so that current will flow on nails. _____5. Wires must be thin. EXPLORATION 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 6 electromagnets of LM 32
  • 58. EXPLANATION: Day 7 EXPLORATION 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 7- electromagnets of LM EXPLANATION Day 8 Background information Do you know that without the electromagnet many modern appliances that we now use could not work? The electromagnet is a basic part of many electrical devices and appliances. Knowing about the properties of electromagnets is a crucial underpinning for understanding how magnetic fields are generated in nature, in the surface of the Sun, and in the interior of Earth. Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks,MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel. Background information Do you know that without the electromagnet many modern appliances that we now use could not work? The electromagnet is a basic part of many electrical devices and appliances.Knowing about the properties of electromagnets is a crucial underpinning for understanding how magnetic fields are generated in nature, in the surface of the Sun, and in the interior of Earth. Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks,MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel. 33
  • 59. Day 8 Exploration 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 8 electromagnets of LM Day 9 EXPLORATION: 1. Divide the class into 4 groups 2. Distribute LM copies of the activity 3. Give instructions/guide in doing the activity 4. Let the pupils do activity 9 electromagnets of LM EXPLANATION Background information Do you know that without the electromagnet many modern appliances that we now use could not work? The electromagnet is a basic part of many electrical devices and appliances.Knowing about the properties of electromagnets is a crucial underpinning for understanding how magnetic fields are generated in nature, in the surface of the Sun, and in the interior of Earth. Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks,MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel. Background information Do you know that without the electromagnet many modern appliances that we now use could not work? The electromagnet is a basic part of many electrical devices and appliances.Knowing about the properties of electromagnets is a crucial underpinning for understanding how magnetic fields are generated in nature, in the surface of the Sun, and in the interior of Earth. Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel. 34
  • 60. Day 10 ELABORATION/EXTENSION: Let’s make a graph! Directions: Show the average number of paper clips each electromagnet picked up for each voltage tested. Use the averages you calculated on the Electromagnets Data Chart to make a line graph for each of the two electromagnets. EVALUATION: Answer the following True or False questions about magnets and electromagnets: TRUE OR FALSE Write true for correct statements and false for wrong statements 1. A strong electromagnet can be produced by making electricity flow through a coil of wire wound around an iron metal. 2. An electromagnet behaves like a magnet. 3. Different volt of electricity produces the same strength of electromagnet. 4. The higher the volt of battery used. The stronger an electromagnet becomes. 5. An electromagnet is a permanent magnet. ASSIGNMENT : Writing About Magnetism Write about having a magnetic touch. Think about what you know about magnets. As you are thinking, remember the story of King Midas (a king whose wish for everything he touched to become gold was granted). Use your imagination and decide the following: 1. What objects you would want to be attracted to you. 2. What would the objects be made of? 3. Would you be able to use the magnetic touch to solve problems? 35
  • 61. Lesson 18 : Protecting and Conserving Estuaries and Intertidal Zones Activity 1 : “Identifying who am I” Objectives: a. Identify ways on how to protect and conserve estuaries and intertidal environment b. Explain the need to protect and conserve estuaries and intertidal environment What you need: Pictures of swamp, rivers, bays, shoreline, marsh Notebook, Pencils, Pen , Manila paper, tape What to do: 1. Form a group of five (5) and choose among your group who will act as your leader and reporter. 2. Get from your teacher the task card or materials needed for the activity. 3. Listen to the instructions to be given by your teacher. 4. The leader will open the task card and let the pupils describe the pictures inside. 5. Solicits all the ideas of each member and make a simple presentation about the activity. 6. If you are done with it you need to clap for the presentation purposes, first to finish, first to report their work. Task Card: Contains picture of estuaries. Group 1 Group 2 36
  • 62. Group 3 Group 4 Group 5 Guide Questions: A. 1. How do the pictures differ from each other? 2. What do we call them? 3. Is there living things and non – living things live in them? 37
  • 63. Lesson 18 : Protecting and Conserving Estuaries and Intertidal Zones Activity 1.1 : “Identifying who am I” Objectives: a. Identify ways on how to protect and conserve estuaries and intertidal ecosystem b. Explain the need to protect and conserve estuaries and intertidal ecosystem c. Show awareness about the importance of protecting and conserving estuaries and intertidal ecosystem What you need: LCD Projector, notebook, Netbook, Video clips of estuaries and Intertidal Ecosystem Pencil / Pen What to do: 1. Watch a documentary about estuaries and intertidal ecosystem 2. Ask the pupils to list down the important facts about the documentary that they have watched. 3. After watching, answer the guide questions. Guide Questions: 1. What are estuaries and intertidal ecosystem? 2. What is the difference between estuaries and intertidal environment? 2. What are the benefits we can get from the estuaries as well as the Intertidal zone? 3. Do you think there is a need to protect and conserve our estuaries and intertidal zones? If Yes, how? Is Not, Why? Remember these: Estuaries are unique ecosystems that are part salt water and part freshwater. Like intertidal zones, estuaries change with the tides. When the tides comes in, estuary water becomes more salty. When the tide runs out, estuary becomes mostly freshwater and waste are flushed out. Estuaries serves as the breeding ground of many ocean fish. Intertidal zones are habitats to organisms of seaweeds sea anemones, crabs, and etc. It is also the shallowest part of the of the ocean ecosystem 38
  • 64. Lesson 18 : Protecting and Conserving Estuaries and Intertidal Zones Activity 2 : “How to protect estuaries and intertidal ecosystem?” Objectives: 2 Days 1. Identify ways on how to protect and conserve estuaries and intertidal ecosystem 2. Show awareness about the importance of protecting and conserving estuaries and intertidal ecosystem What you need: Drawings/ Video Clips of:  River  Lakes and Ponds  Swamps  Bogs  Marshes  Freshwater wetlands What to do: 1. Go to your assigned group. 2. Get your activity card to your teacher 3. Do the activity for 20 minutes 4. Examine the picture/video assigned to your group. Grp. 1. River Grp. 2. Lakes and Ponds Grp. 3. Swamps and Bogs Grp. 4. Marshes Grp. 5. Freshwater wetlands 5. Brainstorm in your group and list down activities on how are you going to protect and conserve those ecosystems. 6. Present your work in the most creative way. You will be given 5 minutes each group. Guide Questions: 1. Why we need to protect the estuaries and intertidal environment? 2. What are the importance of these environment? 3. List down 5 ways on how to protect the estuaries as well as the intertidal environment 4. How can we conserve our estuaries and intertidal environment? 5. Ask grade 5 pupils how can you help in the protection and conservation of the environment? 39
  • 65.  Estuaries rank among the most productive ecosystems on earth, but they are also subject to considerable ecological degradation associated with the loss and alteration of habitats and impairment of water quality due to multiple anthropogenic and natural drivers of change  Escalating population growth, urban and industrial development, modification of coastal watersheds and estuarine basins, pollution inputs, and overharvest of recreational and commercial species can threaten the system structure and function and the sustainability of the system resources.  Putting coconut fiber mat, planting marsh grass, and mussels bed, mangrove trees, reducing sewage, are some activities that may help in the preservation and conservation of our estuaries and intertidal ecosystem. Remember these: 40
  • 66. Lesson 19 : Protecting and Conserving Estuaries and Intertidal Zones Activity 1: “The Human Game Board” Objectives: 1. Participate in community efforts in protecting and conserving estuaries and intertidal environment 2. Apply ways in protecting and conserving the water ecosystem What you need: Activity Sheet Human size game board ( Snake and Ladder game) Human Dice What to do: 1. Group the class into 4 2. Show to the class the human board 3. Listen very carefully as the teacher explain how to perform the activity 4. Tell the pupils that today they will play the human game board. 5. Each group will choose explorer. The explorer is the one who walk in the human board. 6. Each group will toss the human dice, after that the explorer will move based on the number that corresponds in the dice. 7. First explorer to reach the finish line will be the winner. Human Game board 41
  • 67. Guide Questions: 1. How did you find the activity? 2. Is everybody participate in the activity? Why? Why not? 3. What are the possible problem of water ecosystem encountered in the board game? 4. What are the possible solutions indicated in the board game? 5. What did you learn from this activity? Remember these: Lesson 19 : Protecting and Conserving Estuaries and Intertidal Zones Activity 2: “ Water Conservation” Objectives: 1. Participate in community efforts in protecting and conserving estuaries and intertidal environment 2. Apply ways in protecting and conserving the water ecosystem  Estuaries serves as the breeding ground of organisms that play a vital role in the balance of nature.  There are so many ways in protecting and conserving our estuaries but the simplest and easiest way to conserve is to conserve water and plant native plants which does not require fertilizers.  According to study the economy of many coastal areas is based primarily on the natural beauty and bounty of estuaries. When those natural resources are imperiled, so too are the livelihoods of those who live and work in estuarine watersheds.  The used of fertilizers, sewage from falling septic tanks, pet waste, wastewater discharge from industrial facilities, sediment from construction sites, and the rapid increase in population are the main reasons that makes estuarine system imbalance. 42
  • 68. What you need: basins bowl water What to do: 1. Group the pupils in 3 groups 2. Explain to the pupils the mechanics of the activity. a. Each group should form a straight line b. The first person in line should get water from the basin using the bowl and past to the next person above his head, pupils who past the should not look to the next person. c. Continue until the bowl of water reach the last pupils. d. Group who has more water in their bowl wins. 3. Then let the pupils perform the activity. Guide Questions: 1. What is the activity all about? 2. Why is it important to conserve water? 3. What are the different ways in conserving water? 4. What is the significant of this activity in your life? 5. At your age, how can you promote water conservation, especially the estuaries in your community? Remember these: The used of fertilizers, sewage from falling septic tanks, pet waste, wastewater discharge from industrial facilities, sediment from construction sites, and the rapid increase in population are the main reasons that makes estuarine system imbalance. 43
  • 70. Quarter: THIRD Chapter 1: Motion Lesson 2: Using Appropriate Measuring Tools and Correct Standard Units in Measuring Time and Distance of Objects in Motion.  Speed and Velocity (Day 1-2) Activity 1: “Which is faster?” Objectives: 1. Using appropriate measuring tools and correct standard units in measuring time and distance of objects in motion.  speed and velocity What you need:  diagram below What to do: 1. Study the diagram below. Guide Questions: 1. If you were to go to your friend’s house, draw an arrow to show which route or way you’ll take that route? ________________________________________________________________ 2. If you follow the streets, is there more than one route that would be the same distance?_________________________________________________________ 3. Could you go from A to B by shorter route and do not follow the streets? ___________________________________________________________________ 2
  • 71. Science Ideas: Motion is described as a change in position. The simplest kind of motion is motion in a straight line and at a constant rate. Speed describes the rate of motion of an object. It is measured with a speedometer. It has a pointer which moves up when the vehicle goes fast and down when the vehicle slows down. Speed is indicated in terms of kilometer per hour or kph. Speed and velocity are both used to describe motion. But velocity is the rate of motion or speed in a certain direction. So, velocity is a more complete description of motion. If the speedometer of a car indicates 70 kph, has the car moved for an hour? Or has the car traveled 70 kilometers? Speed is indicated in the speedometer but neither the time nor the distance traveled is indicated. When the terms speed and velocity are used, the total amout of time and the distance traveled are not specified. However, the relationship between distance, speed and time are shown below. If any of the three factors are known, you can calculate the third factor. Distance travelled = speed x time Ex. # 1. A car travels ata constant speed of twenty meters per second. How far will the car travel in ten seconds? in forty seconds? Solution: Distance = 20 meters x 10 seconds = 200 meters Ex. # 2. How long would it take the bus to travel two hundred meters if it was moving at a speed of twenty meters per second? Ex. # 3. If a car travels at 500 meters in ten seconds, what is the speed of the car? Solution: Speed = 500 m = 50 m/sec 10 sec But you know it is difficult to travel from one place to another at a constant speed. Sometimes, you need to stop or rest. Your speed may also change as you go uphill or downhill. You may start out moving rapidly; slow down then, speed up again. Speed is usually not constant. An increase in speed or velocity is called acceleration. A decrease in speed or velocity is called deceleration. (Day 3-4) Activity 2: “Is acceleration a change in velocity?” Objectives: 1. Using appropriate measuring tools and correct standard units in measuring time and distance of objects in motion.  acceleration and velocity 3
  • 72. What you need:  marble  chalk  meter stick  stop watch  books of equal size What to do: 1. Place one book each under two of the legs of the table. The top of the table slopes on one side and will allow a marble to roll down the slope from the bottom. 2. With a chalk, mark the starting position of the marble. Use the stop watch to determine how long the marble takes to roll down the table. If it takes less than three seconds to roll down the slope, adjust the slope to make it sleep. 3. Find out how the marble rolls in one second, two seconds and three seconds. Measure the distance with a meter stick. Record your observation. Guide Questions: 1. How could you determine the acceleration of the marble? ________________________________________________________________ 2. If the top were longer would you be able to predict the distance the marble would travel in four seconds? In five seconds? SCIENCE IDEAS:  Acceleration is change in velocity. It is caused by a force such as gravity.  The amount of gravitational attraction depends on how far the objects are and how much mass the object have.  The faster an object falls, the greater is air resistance. Air resistance becomes greater as speed is increased. 4
  • 73. Chapter 3: Light and Sound, Heat and Electricity Lesson: Conductors of Heat and Electricity Activity 1: Conductivity Objective: Discuss why some materials are good conductors of electricity. What you need:  1 batteries (1.5 or 6 V)  1 light bulb in a light bulb holder (1.5 or 6 V, to match the battery) (available at Radio Shack or other electronics shops or websites)  1 piece of wood, approximately 5 x 15 cm (2 x 6 inches) (optional; on which to mount the light bulb holder for stability; any thickness)  1 meter (3 ft) of insulated copper wire in 30 cm (1 ft) sections), or 3 alligator clips  1 thick rubber band  2 large paper clips  2 pencils with eraser tips  2 clean-head, metal thumbtacks What to do: 1. Divide the class into 4 groups. Direct the group to construct a conductivity tester (see Figure 1).  Create the bulb assembly by placing a small 1.5V bulb in a bulb holder, which can be mounted on a piece of wood for stability.  Place a paper clip at each end of the battery. Use the rubber band to hold the paper clips in place.  Attach a wire to each paper clip, making sure that either the insulation is removed from each end of the wire touching the paper clip, or use alligator clips instead of the wire.  Attach one wire from the battery terminal to the light bulb assembly.  Attach a second wire to the other end of the battery.  Attach the third wire from the open end of the light bulb assembly.  Wrap the free ends of wire around two, clean-head, metal thumbtacks.  Push the thumbtacks firmly into the erasers of the two pencils to create testing probes.  Make sure the circuit works by pressing the two testing probes (thumbtacks) together. If the light bulb does not light up, the circuit was constructed incorrectly. 5
  • 74. Figure 1. Conductivity tester setup. 2. To test an object, apply the two testing probes to opposite ends of each object. If the light bulb lights up, then the object is a conductor. If the bulb does not light up, then the object is an insulator. Hint: Make sure you do not touch the two testing probes together or the reading is invalid. 3. After testing is completed, have the groups compare their results for which test objects were considered good conductors and which are not good conductors. Have them came up to the idea that most metals are good electrical conductors. Most non-metals are poor electrical conductors. Guide Questions: Based on your observation why some materials are good conductors of electricity? Explain your answer 6
  • 75. Remember these: Vocabulary/Definitions Objects or materials that allow the transfer of electrons (electricity). a quality related to the conductor. Electrons: Very small, negatively charged particles.  There are many materials that allow charges to move easily. They are called conductors. Conductors have the quality of conductivity. The conductor is the object that allows charge to flow. Conductivity is a quality related to the conductor. A material that is a good conductor gives very little resistance to the flow of charge. This flow of charge is called an electriccurrent. A good conductor has high conductivity.  Metals contain free electrons. When potential difference is applied at the ends of a metal rod, the electrons respond to it and star moving towards the positive terminal of battery. This flow electrons result in the conduction of electricity through the metal. 7
  • 76. Chapter 3: Light and Sound, Heat and Electricity Lesson: Conductors of Heat and Electricity Activity 2: “Roasted Hotdogs” Objective: Observe why some materials are good conductors of heat. What you need: 2 hotdogs metal hanger barbeque stick flame What to do: 1. Put the first hotdog in barbeque stick, and the other in metal hanger. 2. Roast them in a flame. 3. For about a minute, hold the barbeque stick and the metal hanger. 4. Observe. a. What have you noticed when you hold the barbeque stick and the metal hanger? Write your answer below: Barbeque stick Metal hanger b. Which of the two materials used in hotdog is a good conductor of heat? c. Why some materials are good conductors of heat? 8
  • 77. Remember These: Atoms- the smallest particles of an element that can exist either alone or in combination. Conduction- the transfer of heat through matter. Heat- added energy that causes substances to rise in temperature Molecules- the smallest particle of a substance that retains all the properties of the substance and is composed of one or more atoms. Metals make good conductors of heat because of their electronic properties and also because they tend to be denser so that heat transferred by neighboring atoms in close contact is more efficient. Lighter or less materials like wood, air, etc. make poor conductors of heat. 9
  • 78. Chapter 3: Light and Sound, Heat and Electricity Lesson: Conductors of Heat and Electricity Activity 3:” Give Me” Objective: Lists the materials that are good conductors of heat and electricity. What You Need: Manila paper Pentel pen What To Do: Give examples of good conductor of heat and electricity and tell why those materials considered as good conductors of heat and electricity. Record all ideas in manila paper. Materials ( Good Conductor) Why? 10
  • 79. Chapter 3: Light and Sound, Heat and Electricity Lesson: Effects of Heat and Electricity Activity 1: Heat Absorption A Objective: Infer why black and coloured objects affect the ability to absorb heat. YOU WILL NEED:  2 glasses  Water  Black construction paper  White paper  Tape or rubber bands  Thermometer  A sunny day What to do! 1. Find two identical glasses. 2. Cut black construction paper to the same height as one of the glasses. 3. Wrap the black construction paper around the glass so it covers the entire outside surface, as well as the top. 4. Tape the paper in place or put a rubber band around the glass to hold the paper in place. 5. Repeat steps 2-4 with the second glass with the white paper. 6. Fill both glasses with water. Make sure they have the same amount of water in them, and make sure you use the same temperature of water in both glasses. 7. Take the temperature of the water in each glass and write down the starting temperature. 8. Place both glasses outside in the sun. 11
  • 80. 9. Use the thermometer to take each glass’s temperature every 15 minutes for two hours. Carefully make a small hole in the paper at the edge of the glass to insert your thermometer. 10. Record your observations as you go. What did you notice? 11. When the two hours are up, create a line graph to track the temperature change in each glass. Temperature should be your Y-axis and time should be your X-axis. Did one glass heat up faster than the other? Did they both reach the same temperature at the end? ( Try using different colours to see how much of a difference there is between them.) Remember These: absorb- to take in heat- to become warm or hot Black or coloured objects absorbs more heat than white objects You should have found that the glass wrapped in black paper ended up with hotter water than the glass with white paper. This is because black absorbs more heat than white. Clearly, black and white are on opposite ends of the colour spectrum. 12
  • 81. Chapter 3: Light and Sound, Heat and Electricity Lesson: Effects of Heat and Electricity Activity 2: Heat Absorption B Objective: Infer why black and coloured objects affect the ability to absorb heat. YOU WILL NEED: 1. 6–8 identical beakers, with aeroboard covers or lids 2. 6–8 sheets of coloured paper (different colours). Make sure you have a sheet of black and a sheet of white and any other available colours 3. scissors 4. sticky tape 5. water 6. thermometers 7. plasticine 8. 200 W filament bulb 9. timer or clock What to Do: 1. Put a hole slightly larger than the diameter of your thermometer in the lids of the beakers. 2. Tightly wrap each beaker with a different colour of paper. 3. Carefully fill each beaker with the same volume of water, making sure not to wet the paper. 4. You need to have the same starting temperature for each beaker. The easiest way to do this is to have all of the beakers at room temperature. Fill them with water that is about the same temperature the day before you want to start your experiment. Cover the beakers and leave them to come to room temperature overnight. 5. Put the thermometer in through the hole in the lid so that its bulb is completely immersed in the water. Use plasticine to seal the hole and hold the thermometer in place. Keep the thermometer at the same height with respect to the lid for all the beakers. 6. Get a large sheet of white paper. Draw a circle of radius 0.25 m on it. Place the jars at equal spaces on the circumference of the circle. 7. Clamp the bulb and place it at the centre of the circle. 8. Note the starting temperature for each beaker. 13
  • 82. 9. Switch on the bulb. 10. Leave the beakers around the bulb for 20 minutes. Record the temperature of each beaker when that time has elapsed. 11. Complete the table Colour of paper Starting Temperature Finishing Temperature Rise in Temperature Remember These: Colours are NOT all equally heat absorbent. When light interacts with an object, that light can be absorbed, reflected, or transmitted. Black objects absorb all wavelengths of light, while white objects reflect all visible wavelengths. They are complete opposites. Other colours absorb some wavelengths and reflect others, which is what makes them appear different to the human eye. Colour is a result of the wavelength of light reflected by that object. For example, an object that absorbs selectively yellow light will not look yellow; it would be a combination of every other colour besides yellow. The colour you observe is a complement to the colour the object absorbs. 14
  • 83. Chapter 3: Light and Sound, Heat and Electricity Lesson: Effects of Heat and Electricity Activity 3: Heat Absorption C Objective: Infer why black and coloured objects affect the ability to absorb heat YOU WILL NEED:  colored paper 4 sheets per group (white, yellow, red, black)  newspaper  scissors (one per student if you want the them to cut out the boxes [cube templates] from the colored paper)  clear tape, to make the cube boxes from colored paper  4 ice cubes per group  sunny day or a heat lamp What to Do 1. Prepare four sheets of coloured paper (white, yellow, red, black), cut and fold the sheets into boxes. 2. Hand out newspaper and spread the newspaper in an exposed, sunny place outside, or under a heat lamp. 3. On the newspaper, place the boxes side by side with the opening facing away from the sun/light so students can see inside. 4. Get four ice cubes and place one ice cube in the center of each coloured box. 5. Let the ice cubes sit in the sun until they have melted. Check them every few minutes and record which ice cubes melted first, second, third, and fourth. 15
  • 84. 6. 7. Rrecord your data in the worksheet chart. 8. Answer the following: 1. Why do ice cubes melt? 2. How does the sun affect ice? 3.On which color did the first ice cube completely melt? Why? 4.If an ice cube was placed on a blue piece of paper, how much time do you think it would take to completely melt? 5.Which color absorbs heat the quickest in the sun? 6.Which color would be the best to help keep ice cubes from melting too quickly in the sun? Remember These: absorb: To take in; to transform (radiant energy) into a different form usually with a resulting rise in temperature. energy: The capacity for doing work; raising weight, for example. heat: A form of energy that causes substances to rise in temperature or to go through associated phase changes (as melting, evaporation, or expansion). radiant energy: Energy (as heat waves, light waves, radio waves, x-rays) transmitted in the form of electromagnetic waves. reflect: To bounce waves of light, sound, or heat off a surface. . 16
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  • 86. Lesson 5: Ability of the Materials to Block, Absorb or Transmit Light to Its Use Activity 1: How light behaves? Objectives: Identify the materials that can block, absorb or transmit light. What you need:  3 Flashlights  Rubber Bonds  Cellophane  Wax Paper  Aluminum Foil What to do: 1. Cover the flashlight with the given material with the help of the rubber bands. 1st group – cellophane 2nd group – wax paper 3rd group – aluminum foil 2. Turn on the flashlight 3. Point it into the wall and look through it and describe what happen to the light. Guided Questions: 1. What happen to the light of the flashlight covered with the given material? 2. Does the light able to pass through? 3. Does the appearance of light is the same with the light without the cover? Why? Remember: Transparent material allows light to transmit easily. Translucent material permit to transmit a little light because most of it is spreading in the opposite side and some are being absorb. Opaque material light cannot transmit, the light is absorb and reflected 18
  • 87. Activity 2: Shadow Formation Objectives: Explain the effects of light on people and objects. What you need:  Source of light  Paper doll What to do: 1. Put the paper doll near the wall. 2. Raise the paper doll where can it block the light. 3. Observe it carefully 4. Hold the paper doll closer to the light. 5. Then farther from the light. 6. Light hits it from the side Guided Question: 1. What is form in the wall? 2. How does the shadow look when it is closer to the light? 3. How does the shadow look when it is farther from the light? 4. When light hits in the side how does shadows look? 5. What did you find out about shadow? Remember: A shadow is always on the side of an object which is opposite the source of light. It is always in the shape of the object that block the light. When an object is closer the source of light it appears larger and smaller when it is farther from the light. When light is slanted, the shadow is longer and when light comes from above, the shadow is shorter. 19
  • 88. Activity 3: White or Colored What you need:  Spray bottle  Water What to do: (Do this outside) 1. Fill the bottle with water 2. Observe it carefully 3. From the source of light press the sprayer. Guided Question: 1. What do you see? 2. Which color seems to bend most? 3. Which color seems to bend least? 4. What did you find out about rainbow? Remember: The light that’s come from the sun is white. This white light is made up of different colors. These colors are separated when light passes through a prism. Each color has its own wavelength, red has the longest wavelength because it is the least bent and violet has shortest wavelength because it is the bent the most. 20
  • 89. Activity 4: Different Color is White What you need:  3 pieces of colored cellophane (red, blue, green)  3 flashlights  4 pieces of construction paper (white, red, blue, green) What to do: 1. Cover the head of each flashlight with cellophane 2. Turn on the flashlights and point them at the white paper. 3. Then point the flashlight with the other paper Red light – green paper Green light – blue paper Blue light – red paper 4. Repeat step 2 and use the 3 different color together Guided Question: 1. What do color do you see? 2. What happen when you looked at the papers through the different colored cellophane 3. What color is form when you combine all the 3 color? 4. What color of light beams did you combine to produce a white light? Remember: You have seen how white light produce. When different colors of light mixed together form white light. 21
  • 90. Lesson 6: Ability of the Materials to Block, Absorb or Transmit Sound to Its Use Activity 1: Absorb and Reflect Sound Objectives: Identify the materials that can block, absorb or transmit sound. What you need:  Tin can  Face towel  Rubber sheet  Cotton What to do: 1. Shout into the empty can. 2. Line the tin can with the material assigned. Group 1 – face towel Group 2 – rubber sheet Group 3 – cotton 3. Then shout some words into the can. Guided Question: 1. Is the sound you hear loud? 2. Can you still hear the sound? 3. Was the sound loud and clear? Remember:  Sound is produced when an object vibrates it travels in all directions.  Sound may be absorbed or reflected when they strike an object.  The reflected sound is call echo.  Dull sound is hear when it is absorb by an object.  22
  • 91. Activity 2: Sound of Nature Objectives: Explain the effects of sound on people and objects. What you need:  Audio of nature sound What to do: 1. Play the nature sound. 2. Listen carefully to the sound Guided Question: 1. What kind of sound do you hear? 2. Is the sound pleasant or unpleasant to hear? 3. How do feel when you hear this sound? Remember: Nature sound is a very pleasant to hear. It help you to relax and ease the stress that you feel. It also benefits people who has suffering from issues related to sleep brought by tension or anxiety. Several rest expert suggest using sound therapy rather than sleeping tablets 23
  • 92. Activity 3: Undesirable Sound What you need:  Audio of rock music What to do: 3. Play the nature sound. 4. Listen carefully to the sound Guided Question: 4. What kind of sound do you hear? 5. Is the sound pleasant or unpleasant to hear? 6. How do feel when you hear this sound? Remember: Unpleasant sound is undesirable sound which disturbs and break our concentration. This kind of sound is consider as noise that may increase your risk of hearing loss, stress, sleep disturbances, and heart disease 24
  • 93. THIRD QUARTER Lessson_ -Electromagnet ACTIVITY 1- How to construct an electromagnet? Objectives 1 .Construct an electromagnet 2. Identify the materials that make up an electromagnet. What you need: Dry cells wire cutter Nail pins What to do: 1. Using a cutter, uncoat the electrical wires and get the copper inside it. 2. Make ten turns of the copper wire around the nail. 3. Connect both ends of the copper wire to the negative and positive terminals of the dry cell. 4. Bring the electromagnet near the pins .Count the number of pins attracted to it. 5. Disconnect one end of the copper wire to the source of electricity. Then bring the magnet near the pins. Guide Questions: 1. What are needed in constructing an electromagnet? 2. Where does the strength of an electromagnet come from? 3. What happened if you put the electromagnet near the pins? 4. What happened after you disconnect the wire? 5. How will you construct an electromagnet? Remember these: An electromagnet works only when there is a flow of electricity through the coil of wire.It is made up of an iron core, copper wire and source of electricity. 25
  • 94. Third Quarter Lesson : ELECTROMAGNET ACTIVITY 2 - What are the function of each part of an electromagnet? Objectives: 1 . Describe the function of each material that makes up an electromagnet. 2. Infer that electricity can be used to produce magnet. What you need: (Per Group) Constructed electromagnet from the previous activity strips of cartolina marking pen scotch tape What to do: 1. Get the constructed electromagnet from the previous activity. 2. Test if your electromagnet works. 3. On the strips of cartolina write the materials that you used to construct an electromagnet. 4. Label the constructed electromagnet using the strips of cartolina. 5. Give the function of each part of an electromagnet. Guide Questions: 1. Did the iron nail attract the magnetic materials when a complete connection of electromagnet was made? 2. What is the function of the following parts an electromagnet? A . dry cell /battery B. nail C. copper 3. What is an electromagnet? 4. When can electromagnet acquire magnetism? 5. Why is an electromagnet called a temporary magnet? 26
  • 95. Remember these: A simple electromagnet consists of 3 main parts: 1. Core – magnetic material 2. Coil of wire – conductor of electricity 3. Dry cell - source of electricity An electromagnet is only a temporary magnet. Without electricity it loses its magnetism. The nail becomes a temporary magnet as the current flows through it. When the current is broken, the nail is no longer a magnet. 27
  • 97. QUARTER 4 – EARTH AND SPACE Chapter 1 - Processes that Shape Earth’s Surface Lesson ___ – Weathering and Soil Erosion Day 1 Activity 1 – “How Rocks turn into soil?” Objectives: 1. Describe how rocks turn into soil. 2. Identify the forces that break down rocks. 3. Explain how rocks are broken down. What you need: video clips 3pcs. marking pen data table bond paper 3pcs. manila paper meta cards What to do: 1. Form a group and choose among your group who will act as leader and presenter. 2. Watch attentively to the video. 3. Write down important notes to gather information. 4. After the viewing, the leader will get the materials from your teacher to be used in the next activity. 5. Go to the working place assigned to each group. 6. Brainstorm ideas about how rocks turn into soil that you have watched from the video. 7. Follow the instruction given. 8. Give your yell if you’re done. 9. Post your work and present your output. 2
  • 98. Describe how rock turn into soil in this picture Guide Questions: 1. 1. How rocks turn into soil? 2. How does natural process break down rocks into soil? Remember These: Lichens (LYK-uhnz) or tiny plantlike living things, grow on the outsides of the rocks. They slowly break down rock to get nutrients. Temperature changes, wind, and water also slowly break the rock apart. Small plants can grow in the cracks. Plant roots continue to break the rock apart. Wind and water move bits of weathered rocks to new places. Later, the bits are part of the well-developed soil. 3
  • 99. Day 2 Activity 2: “Whether you believe it or not?” What you need: 3pcs. Cartolina I believe sticker 3pcs. Marking pen I don’t believe sticker Pictures tape What to do: 1. The leader will get the materials from your teacher to be used in the activity. 2. Study and share ideas about the pictures provided to your group.. 3. Paste your I believe sticker if the picture show forces that break down rocks and I don’t believe sticker if not. 4. Place all the pictures in the cartolina provided. 5. Label each picture the kind of forces that break down rocks. 6. As soon as you are done with your activity, post your work on the board and report your output. 4
  • 100. 5
  • 101. Guide Questions: What are natural forces that break down rocks? What does each picture show? Name some places where the natural forces that break down rocks happens? Remember These: 6
  • 102. Day 3 Activity 3 – “Breaking Down Rocks” What you need: A mineral water bottle with cap Water Cartolina Marking pen What to do: 1. Do this activity ahead of time. 2. The leader will get the materials from your teacher to be used in the activity. 3. Fill the bottle with water up to the brim and screw the cap. 4. Observe the water-filled bottle before doing step 3. 5. Place the bottle inside the freezer overnight. 6. Observe the set up the following morning. 7. Enter your observations in the table provided. 8. Examine the setup again. 9. Think about how water causes the plastic bottle to break. 10. Relate the observation with what is happening to rocks in nature. Before Freezing After Freezing 7
  • 103. Guide Questions: 1. What happens to the plastic bottle with water when placed inside the freezer overnight? 2. How does water cause the breakdown of rocks in nature? Remember These: What are the forces that break down rocks Explain how rocks are broken down 8