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    Science works!1 tx_prelims-watermark Science works!1 tx_prelims-watermark Document Transcript

    • Science Works! 1 TEXTBOOK
    • Science Works! 1TextbookPhilippine Copyright 2012 by DIWA LEARNING SYSTEMS INCAll rights reserved. Printed in the PhilippinesEditorial, design, and layout by University Press of First AsiaNo part of this publication may be reproduced or transmitted in any form or by any means electronic or mechanical,including photocopying, recording, or any information storage and retrieval systems, without permission in writingfrom the copyright owner. Exclusively distributed by DIWA LEARNING SYSTEMS INC 4/F SEDCCO 1 Bldg. 120 Thailand corner Legazpi Streets Legaspi Village, 1229 Makati City, Philippines Tel. No.: (632) 893-8501 * Fax: (632) 817-8700 ISBN 978-971-46-0287-8AuthorKhristine Joy G. Gersabelino received her bachelor’s degree in psychology major in educationalpsychology stream, cum laude, from Philippine Normal University. She is a member of the Associationof Science Teachers and Educators of the Philippines. Currently, Ms. Gersabelino is a grade schoolscience teacher at Miriam College.ConsultantAntom V. Revilla finished his master’s degree in biology from Centro Escolar University. He obtainedhis bachelor’s degree in forestry, cum laude, from the University of the Philippines–Los Baños. Mr.Revilla was a supervisor of Christian Bible Baptist School of Excellence and Development. He hastaught general science, biology, and scientific research at San Beda College–Manila since 1991.
    • To the Pupil Discovery and learning are part of your everyday life.Whether you are playing or studying, you are able to understandand learn about the things around you. This book, ScienceWorks! 1, is meant to teach you different science concepts andskills in an exciting way. Science Works! 1 will help you to be actively involved inlearning concepts about the human body, plants, animals, Earth,sun, and many more. Science concepts and skills are best learnedby engaging in activities and performing experiments. Theseactivities will lead you to create your own questions, conductyour own investigations, and develop your own solutions toproblems through reasoning and observation. This book, which has been designed especially for you,includes the following components: Sci-tionary presents an activity that introduces you to words or terms that you will encounter in the lesson. Jump Start lists a set of guide questions that are expected to be answered as you go along the lesson. Feed Your Mind provides the discussion of the science concepts to be learned in the lesson. Science in Action presents experiments, cooperative learning activities, and individual or group projects that will apply the science concepts you have learned in Feed Your Mind.
    • Learning Area Integration relates a particular science lesson to the other subject areas such as English, mathematics, and social studies. This will help you appreciate how science is applied to other fields of study. Rundown lists the important science concepts that should be remembered at the end of each lesson. Brain Challenge presents 5- to 10-item quiz about the lesson. Chapter Checkup includes exercises that cover all the topics discussed in a chapter. Your Move presents an activity that will allow you to apply what you have learned to a real-life situation. Aside from the components given above, some lessons inthis book include these additional sections: Incredible Facts presents interesting or extraordinary facts and trivia related to the science concept. Proud Pinoy features notable Filipino people, culture, products, and inventions. Sci-tainment includes fun games and activities related to the science concept. Exploring the Web provides links to online activities or exercises that you may access to help reinforce and enrich your learning. Begin your journey and discovery now! Use what you willlearn in this book and apply them to your everyday life.
    • Table of ContentsUnit 1 The Body You Are Gifted WithChapter 1 Learning about Your Body and Your Needs ............................... 2Lesson 1 Parts of Your Body .............................................................................2 2 Your Sense Organs and How Your Body Parts Work ........................... 7 3 Caring for Your Body ....................................................................... 13 4 Healthy Food for a Healthy You ....................................................... 18 5 You Need Air, Water, and Sunlight ................................................... 25 6 Clothes for Your Protection .............................................................. 29 7 A Clean and Safe House ................................................................... 34 8 Your Body Needs Exercise, Recreation, Rest, and Sleep .................... 39 9 Love and Care for a Healthy You...................................................... 44Chapter Checkup ................................................................................................ 48Chapter 2 Learning about Your Growth .................................................... 49Lesson 1 Your Height and Weight................................................................... 49 2 Likeness among Growing Children .................................................. 54 3 Differences among Growing Children .............................................. 59 4 Keeping Oneself Safe ....................................................................... 63Chapter Checkup ................................................................................................ 68Your Move .......................................................................................................... 71Unit 2 Plants and Animals around YouChapter 3 Know the Plants around You.................................................... 73Lesson 1 Parts of a Plant ................................................................................ 74 2 Kinds of Plants ................................................................................ 80 3 Describing and Comparing Plants .................................................... 84 4 Places Where Plants Live ................................................................. 88 5 How Plants Grow ............................................................................ 92 6 Importance of Plants ........................................................................ 97 7 Needs of Plants .............................................................................. 101Chapter Checkup .............................................................................................. 105Chapter 4 Know the Animals around You ...............................................107Lesson 1 Groups of Animals ......................................................................... 107 2 Animal Body Parts and Their Uses................................................. 113 3 Animals Move in Different Ways ................................................... 118 4 Places Where Animals Live ............................................................ 123 5 How Animals Grow ....................................................................... 128
    • 6 Why Animals Are Important .......................................................... 133 7 Needs of Animals .......................................................................... 138Chapter Checkup .............................................................................................. 143Your Move ........................................................................................................ 145Unit 3 Matter, Energy, and ForceChapter 5 Discover Matter .......................................................................148Lesson 1 Characteristics of Matter ................................................................ 148 2 Solid, Liquid, and Gas .................................................................... 152Chapter Checkup .............................................................................................. 156Chapter 6 Energy in Action .....................................................................158Lesson 1 Heat .............................................................................................. 158 2 Light ............................................................................................. 163 3 Protecting Oneself from Too Much Heat and Light ........................ 168 4 Sound ............................................................................................ 173 5 Ways to Lessen Noise Pollution ..................................................... 176Chapter Checkup .............................................................................................. 180Chapter 7 Forces on the Move .................................................................182Lesson 1 Push and Pull ................................................................................ 182 2 What Force Can Do ....................................................................... 187 3 Other Forces That Make Things Move ........................................... 191Chapter Checkup .............................................................................................. 196Your Move ........................................................................................................ 199Unit 4 Earth and BeyondChapter 8 Earth: Our World, Our Home ................................................202Lesson 1 Earth Up Close .............................................................................. 202 2 Earth’s Landforms ......................................................................... 206 3 Earth’s Bodies of Water ................................................................. 211 4 Earth’s Air ..................................................................................... 215 5 Kinds of Weather ........................................................................... 218 6 Earth’s Resources .......................................................................... 223 7 Protecting Earth ............................................................................. 227Chapter Checkup .............................................................................................. 231Chapter 9 The Sky ..................................................................................233Lesson 1 The Sun ......................................................................................... 233 2 The Moon and the Stars ................................................................. 237 3 Daytime and Nighttime.................................................................. 241Chapter Checkup .............................................................................................. 245Your Move ........................................................................................................ 247Bibliography...................................................................................................... 249
    • The Body YouAre Gifted With 1 UNIT The picture shows ________________________________________. Before, I know that _______________________________________.Y ou do science every day. When you play, you get to know what your body can do. You also know more aboutthe things around you with the help of your body. In this unit,you will learn more about your body, its parts, and its changesas you grow.
    • CHAPTER 1 Learning about Your Body and Your Needs Lesson 1 Parts of Your Body Complete the words. Write the missing letter on eachblank. A clue is given for each word. 1. H ____ ____ ____ This is the upper part of your body where you can find your ears and eyes. 2. T ____ U ____ ____ This is the middle part of your body where you can find your shoulders and chest. 3. L ____ M ____ ____ These are the parts of your body that include your arms and legs. In this lesson, you will be able to answer the followingquestions: 1. How well do you know your body? 2. Can you name the different parts of your body? What are they? Science Works! 1
    • Carla, Nilo, Alice, and Ben are good friends. They live inthe same neighborhood. They love to do things together. Ona fine day, they play at the park with other children. Theirfavorite games are hide-and-seek and piko. Carla, Nilo,Alice, and Ben areclassmates, too.At school, theydraw, write, sing,and dance togetherwith their otherclassmates. Carla, Nilo,Alice, and Ben cando many thingsevery day. Whathelps them dodifferent activities? Can you do the things that they can do?What other activities do you do every day? Children like you can do many things with their bodyparts. What are these body parts? Your body is divided into three big groups. These are thehead, trunk, and limbs. What are the parts of your head? Look at yourself in front of a mirror. The top part of yourbody is the head. Your hair grows from the top of your head.The uppermost part of your face is your forehead. Below yourforehead are your eyebrows, eyes, and eyelashes. The Body You Are Gifted With 
    • At the center of your face is your nose. On opposite sides,beside your nose, are your cheeks. Below the nose you canfind your mouth, lips, and chin. Your teeth and tongue areinside your mouth. Your ears are on the left and right sides ofyour head. hair forehead eyebrow eye eyelash nose ear mouth shoulder neck elbow arm lip chin chest waist wrist hand leg fingers knee abdomen toes ankle foot The middle part of your body is the trunk. It issometimes called torso. The trunk has many parts. These arethe shoulders, chest, abdomen, and waist. The neck connectsthe head and the trunk. You have two upper limbs and two lower limbs. Theparts of the upper limbs are the arm, elbow, wrist, hand, andfingers. The parts of the lower limbs are the leg, knee, ankle,foot, and toes. Science Works! 1
    • Using My Body PartsObjective: Identify the body parts used in doing different activities.Materials: pencil, eraser, ripe mango, bananaProcedure: 1. Choose a partner. Decide who will be pupil A and pupil B. Pupil A – will bring a ripe mango Pupil B – will bring a banana 2. Observe the characteristics of each fruit. Write your observations by completing the table below. 3. Exchange fruit with your partner and do number 2 again. Characteristics Fruit Color Size Shape Feel Odor Banana MangoQuestions: 1. What body parts did you use to describe the fruits? 2. What do you think will happen if your body parts are not working well? Give an example. The Body You Are Gifted With 
    • • The body has three big groups. These are the head, the trunk, and the limbs.• The head has the following parts: hair, forehead, eyes, eyebrows, eyelashes, ears, nose, lips, chin, and mouth.• The trunk has the following parts: shoulders, chest, abdomen, and waist.• You have two upper limbs and two lower limbs.• The neck connects the head and the trunk. Put a check () mark in the correct box where each bodypart is found. Body Part Head Trunk Limbs 1 2 3 4 5 Science Works! 1
    • Lesson 2 Your Sense Organs and How Your Body Parts Work Match the items in column A with the items in column B.Write the letter of your answer inside the circle. A B 1. The body parts that can help a. eye you see, hear, taste, smell, or b. limbs feel the things around you c. neck 2. The body parts that help you d. sense move things organs 3. The body part that lets you see things in your surroundings In this lesson, you will be able to answer the followingquestions: 1. What are the five sense organs? 2. How do the parts of your body work together? 3. How do these parts help you in doing your work? The Body You Are Gifted With 
    • Ben, Alice, Carla, and Nilo love to play different kinds ofgames. Ben and Nilo love to play basketball. Ben can throw theball with full strength. Nilo can easily catch it with his hands. Carla and Alice like to play jump rope. Bothof them can jump high. Ben, Alice, Carla,and Nilo use theirsense organs whenthey play. Theirdifferent body partslet them do manyactivities, too. You have fivesense organs. Theseare your ears, eyes,nose, skin, andtongue. These organshelp you know anddescribe the thingsaround you. Your ears let you hear soft and loud sounds. Youreyes let you see the trees, flowers, clouds, and animals. Yournose helps you smell the odors around you like the fragrantsampaguita flowers in the park or the delicious adobo in thekitchen. Your tongue lets you taste food. Your skin helpsyou touch or feel objects. You can tell if an object is smooth,rough, soft, or hard because of your skin. Science Works! 1
    • Incredible Facts When a part of the body such as the leg is badly damaged because of an accident or a disease, doctors may replace it with an artificial one. Doctors use strong plastic and light metal to replace a damaged leg. Aside from your senses, your other body parts also workto help you do your daily activities. Your body parts worktogether to let you do many things. Your hands and arms helpyou move objects from one place to another. Your legs andfeet help you move around by walking and running. Youreyes and hands let you read and hold a book. Can you thinkof other activities that you can do with the help of your bodyparts? What Will Happen If I Lose My Sight?Objective: Identify the body parts that can be used when one body part cannot be used.Materials: handkerchief, basketball, pair of cymbals, drum, whistle, xylophoneProcedure: 1. Form a group with six members. Your teacher will assign an object (a basketball, a pair of cymbals, a drum, a whistle, or a xylophone) to one member of your group. This member will serve as your team leader. The Body You Are Gifted With 
    • 2. The rest of the members of the group will be blindfolded using a handkerchief. The blindfolded members will be guided by your teacher to an area in the classroom. (You may also do this activity in the gym with your teacher’s guidance.) The team leaders with the different objects will be assigned to different places in the classroom. 3. On your teacher’s signal, the team leaders will produce sounds using the objects given to them. The blindfolded members must then look for their own group as they hear the sounds. 4. The first group that can regroup at the shortest time will be the winner.Questions: 1. How did you feel when you were blindfolded? 2. What senses did you use to look for your group? 3. How did you feel when you finally found your group? 4. For the team leader: What body parts did you use when you made sounds using the object given to you? English Helen Keller was a brave American woman who was able to achieve success despite being blind and deaf. Helen was able to read with the help of her teacher, Anne Sullivan. She received academic awards when she finished college. Helen also became a famous writer. She wrote a total of 12 books and many articles. Her most famous book is entitled The Story of My Life.10 Science Works! 1
    • • The five sense organs are the eyes, ears, nose, tongue, and skin. These sense organs refer to body parts that make a person see, hear, smell, taste, and feel things.• Body parts work together to help people do different activities.A. Which sense organ(s) do you use in each activity? Put a check () mark in the correct column(s). Sense Organs Activity The Body You Are Gifted With 11
    • B. What are the body part(s) used in each activity? Put a check () mark in the correct column(s). Activity Head Arms Hands Legs Feet 1 2 3 4 51 Science Works! 1
    • Lesson 3 Caring for Your Body Write the missing letters to complete the words in thepuzzle. Read the given clues to help you answer each number. Clues: 1 s c 2 n 1. It makes you feel weak. Because of t this, you cannot play 3 g s and work. 2. These are substances that make your body e strong and healthy. 3. They can harm your t body and can cause diseases like cough and cold. In this lesson, you will be able to answer the followingquestions: 1. Why do you need to take good care of your body? 2. How should you take care of your body? The Body You Are Gifted With 1
    • It is another day for school. When Nilo woke up, he did not feel well. He sneezed and felt cold. His mother touched his forehead and felt that he is hot. Nilo has fever. Fever is a sign that something is wrong with your body. When you are sick, you must stay at home to avoid spreading your sickness. How can you protect yourself from diseases? You must always take a bath every day. Taking a bath does not only make you feel fresh. It also washes away the germs that might make you sick. Washing your hands regularly is very important. Your hands can easily pick up germs. You must wash your hands before and after eating. You also need to wash your hands after using the bathroom. Follow these steps on how to wash your hands properly. 1 Wet your hands. 2 Apply soap and rub your hands together for 20 seconds.1 Science Works! 1
    • 3 Rinse both hands for 4 Dry your hands. 10 seconds. Eat also healthy foods like fruits, meat, and vegetables,and drink lots of water. These can help protect you fromsickness. The food you eat gives you nutrients and energy thatyour body needs. The water you drink can replace the wateryou lost when you sweat and urinate. After eating, you should always brush your teeth to keepthem healthy. Brush your teeth and tongue gently to removetiny bits of food left in between your teeth and the “bumps”of your tongue. You use different materials to clean your body. Are youfamiliar with these cleaning materials? Can you tell for whichparts of the body thesecleaning materials areused? When using cleaningmaterials, you shouldask for the help of anadult. These cleaningmaterials can harm yourbody if not properlyused. The Body You Are Gifted With 1
    • Two to CareObjective: Identify ways on how to take care of the body.Material: pencilProcedure: 1. With a partner, read the sentences below. 2. Underline the sentences that tell about how to keep the body clean. Brush your teeth. Do not wash your hands. Drink water. Play all the time. Exercise every day. Take a bath every day.• There are different ways of caring for the body. These include taking a bath every day, washing hands regularly, eating healthy foods, and brushing teeth after eating.• Food provides the nutrients and energy that the body needs to work well.• Different cleaning materials are used to take care of the body.1 Science Works! 1
    • Encircle the picture that does not belong to the group.1.2.3.4.5. The Body You Are Gifted With 1
    • Lesson 4 Healthy Food for a Healthy You Match the words in A with their meanings in B. Color thecorrect pair with the same color. A B It is a chart that shows how to eat the chewing correct amounts of different food groups. These are found in the balanced food you eat. They keep meal your body healthy. It is the healthful food combination of food pyramid that gives the body the nutrients it needs. It is the breakdown vitamins of food into smaller pieces.1 Science Works! 1
    • In this lesson, you will be able to answer the followingquestions: 1. Why is food important? 2. What does food do to the body? Carla, Nilo, Ben, and Alice like to eat together. Carla’sfavorite food is spaghetti. Nilo likes to eat biko and suman.Ben loves to eat carrot cake. Alice’s favorite food is tinola. Allof them like to eat vegetables and fruits, too. Eating healthy foods will make your body healthy andstrong. It is important to choose the right foods in the rightamount and eat them on time. The foods you eat can be grouped into three big groupscalled go foods, grow foods, and glow foods. Go foods give you the energy to do your daily tasks. These foods are also known as the energy-giving foods. Some examples of go foods are bread, cereal, rice, and pasta. The Body You Are Gifted With 1
    • Grow foods give your body the nutrients it needs. These foods are called the body- building foods. Grow foods include meat, fish, eggs, beans, nuts, cheese, and milk. Glow foods are also calledthe body-regulating foods. Thevitamins and minerals from thesefoods make your skin healthy.These nutrients are present infruits and vegetables. How oftendo you eat fruits and vegetables? Here are some of the vitamins and minerals that are goodfor the body: 1. Calcium – This makes bones and teeth strong. Milk and cheese are rich in calcium. 2. Vitamin A – This keeps the eyes in good condition. Carrots are an excellent source of vitamin A. 3. Vitamin E – This keeps the skin healthy. Vegetable oil and peanut butter contain vitamin E. 4. Vitamin C – This makes the body’s defense system strong to fight against sickness such as common cold and influenza (flu). Oranges, calamansi, and other citrus fruits contain vitamin C.0 Science Works! 1
    • Children like you should eat a balanced meal. Eating abalanced meal means that you must always eat meals thatcontain the three basic food groups. Eating a balanced meal makes your body healthy andstrong. It helps protect you from any disease or sickness. To know what makes up a balanced meal, nutritionists(people who are experts in nutrition) designed the foodpyramid. A food pyramid serves a guide for people to have abalanced meal each day. Look at the food pyramid below. Eat just enough. Fats, oil, and sugar Eat moderately. Meat, poultry, dried beans, and nuts Eat more. Vegetables and fruits Eat most. Rice and other cereals, bread, and rootcrops Water: At least eight glasses a day Food Pyramid Source: www.furi.dost.gov.ph/index.php?options=content&task=view&id=1126 The Body You Are Gifted With 1
    • The foods found at the bottom of the food pyramid arethe foods that you should eat more often. These are bread,cereal, rice, and pasta. The foods found at the top of thepyramid are the foods that you should eat less often. Thesefoods are those that contain fats, oil, and sugar. Proudly Pinoy Pinakbet is a Filipino food. It is very nutritious because its ingredients are mostly vegetables. The way pinakbet is cooked differs in different places in the country. The ingredients also vary depending on the available vegetables and other ingredients. Ask your parents to cook pinakbet for you. Enjoy eating the delicious and healthy pinakbet with your family! Am I Eating the Right Foods?Objective: Determine the right food to eat.Materials: pencil, paperProcedure: 1. For one week, record the meals you eat each day in the chart on the next page. 2. Classify the foods you eat in each meal as go, grow, or glow food. 3. Determine whether you are eating a balanced meal. 4. Show your record to your parents or guardian. Together with them, answer the question on the next page. Science Works! 1
    • Afternoon Day Breakfast Lunch Dinner SnackMondayTuesdayWednesdayThursdayFridaySaturdaySundayQuestion: Are you eating a balanced meal each day? Mathematics You use your teeth when eating. When you were born, you did not have any teeth yet. When you were two years old, you started to grow 20 milk teeth. At the age of six, your milk teeth will begin to be replaced by 32 permanent teeth. How many more teeth will be added to your milk teeth? Do you have a complete set of teeth already? The Body You Are Gifted With 
    • • The three basic food groups are the go, grow, and glow foods.• Go foods are energy-giving foods. Examples of these foods are rice, pasta, and bread.• Grow foods are body-building foods. Examples of these foods are meat, cheese, and eggs.• Glow foods are body-regulating foods. Examples of these foods are fruits and vegetables.• A balanced meal helps keep the body strong and healthy. Write T if the sentence is true and F if it is false._____ 1. Go foods give the energy you need every day._____ 2. Glow foods help you have strong bones and muscles._____ 3. Grow foods are called the body-regulating foods._____ 4. Your body needs vitamins and minerals to keep you healthy._____ 5. Children like you should eat more chocolates every day._____ 6. A balanced meal should include enough foods from the three food groups._____ 7. The food pyramid shows that you should eat bread and rice more often than sweets like candy and ice cream. Science Works! 1
    • Lesson 5 You Need Air, Water, and Sunlight Look for the given words in the puzzle. Encircle each wordthat you will find. air clean oxygen safe sunlight water s a t e r y d i o s j d e b n s t y w m z x a c q t w a t e r s c b y g h l o v i h s u n l i g h t j u b r l y f s a f e j l p w h y u j c l e a n t y r f In this lesson, you will be able to answer the followingquestion: Why does your body need clean air, safe water, andenough sunlight? The Body You Are Gifted With 
    • It was a beautiful Saturday morning. Alice, Nilo, Carla,and Ben went to the park. Nilo and Alice were runningaround the park. Carla and Ben went up and down the slide. After running, Alice and Nilo felt that they werebreathing really fast and feeling thirsty. So, they drank lots ofwater. Your body needsclean and fresh air. Aircontains many differentgases. The gas neededby your body is calledoxygen. Oxygen comesfrom plants. The parkis one of the best placesto breathe in fresh andclean air. There aremany trees and otherplants at the park. Canyou think of other placeswhere you can breathe in clean and fresh air? Try holding your nose and stop breathing for 30 seconds.Were you able to do it? How did you feel? What wouldhappen when a person’s supply of oxygen is cut off? Surely,that person will pass out or worse, will die. Breathing in dirty air is bad for your body. The air thatcomes out from cars is dirty. It can make you sick. When youare on the road and the air is thick with black or gray smokecoming out of the cars, you should cover your nose with ahandkerchief. Science Works! 1
    • Team Clean AirObjective: Draw a picture that shows a way of keeping the air clean.Materials: short bond paper, crayons, pencilProcedure: 1. Form a group with four members. Each member of the group is assigned with a task. Pupil A: Materials monitor – prepares the materials needed for the drawing Pupil B: Area monitor – sees to it that the work area is kept clean and orderly Pupil C: Peace-keeping monitor – makes sure that the group is not noisy Pupil D: Presenter – explains the drawing of the group 2. Think of a simple way on how to keep the air clean. 3. Draw this way on a piece of bond paper. Make your drawing neat and colorful. 4. Pupil D will present and explain the group’s drawing to the class. Aside from clean air, you also need safe drinkingwater. Water refreshes your body. It washes away harmfulsubstances inside your body. You need to drink at least eightglasses of water a day. The Body You Are Gifted With 
    • Sunlight is also needed by growing children like you.Exposure to early morning sunlight helps the skin producevitamin D. This vitamin helps your bones to be strong.• Clean and fresh air is needed by the body.• Water refreshes the body.• Sunlight helps the skin produce vitamin D, which makes the bones strong. Read the sentences carefully. Shade the happy face if thesentence is correct. 1. Breathing in dirty air can make you healthy. 2. Keeping the air clean is important. 3. The air that comes out from cars is good for the body. 4. Sunlight helps the skin produce vitamin D. 5. Water washes away harmful substances in the body. Science Works! 1
    • Lesson 6 Clothes for Your Protection On the blank provided, write the correct vowel tocomplete the name of the clothes you wear. a e i o u j __ ck __ t p __ nts p __ l __ In this lesson, you will be able to answer the followingquestions: 1. How do clothes protect the body? 2. Why is it important to wear clean and proper clothes? Carla is preparing for school. After she took a bath, shefelt the cold wind. Through the window, she saw that it israining outside. Her mother told her to put on her jacketbefore she goes to school. The Body You Are Gifted With 
    • Wearing a jacket on a cold day can make you feel warm. A jacket is just one of the clothes you wear. Clothes are important. Clothes are not only worn to make you look good. They also protect your body from harmful objects and the changing weather. Wearing proper clothes keeps your body safe. There are different kinds of clothes that you can wear. On a fine weather, it is best to wear clothes made of thin fabric. These will make you feel comfortable even if the day gets hot. On a rainy day, you must wear thicker clothes such as a jacket to protect your body from the cold wind. The clothes that you wear also depend on your activities. When you go to school, you wear your school uniform. When you play with your friends in the neighborhood, you usually wear a sleeveless shirt and short pants that allow you to move freely. When you attend parties or special occasions, you sometimes wear formal clothes such as a dress or a long-sleeved polo. Sometimes, you are even required to wear a costume. What do you wear when you go to church?0 Science Works! 1
    • Dress Up for HealthObjective: Group clothes worn in different weather conditions and occasions.Materials: magazine or newspaper, scissors, glueProcedure: 1. Form a group with four members. 2. Cut out pictures of different clothes from a magazine or newspaper. (Caution: Be very careful when handling the scissors. Make sure not to point them to anyone.) 3. Paste the cutout pictures in the correct box. You may use separate sheets of clean paper if your cutouts do not fit in the boxes. Rainy day Sunny day The Body You Are Gifted With 1
    • Church Civics and Culture Clothing materials used to make clothes come from different places in the country. Two of the common natural materials used for clothing are pineapple and abaca. Did you know that the Philippines is one of the biggest abaca producers in the world?• Clothes protect the body from harmful objects and the changing weather.• The clothes you wear depend on the weather condition and the occasion. Science Works! 1
    • Where do you use the following clothes? Put a check ()mark in the correct box. Party/ Clothes Home School Church Beach Special Event12345 The Body You Are Gifted With 
    • Lesson 7 A Clean and Safe House Complete the puzzle by writing the missing letters. Readthe clues given for each number. Clues: 1. A room in the house 2 1 b d where you eat with your family 3 l n 2. A room in the house where you rest and sleep 3. A room in the house 4 g g where you entertain visitors 4. A part of the house where a car is parked In this lesson, you will be able to answer the followingquestions: 1. What are the parts of a house? What is the use of each part? 2. What should be done to make a house safe for growing children? Science Works! 1
    • Nilo helps his mom and dad in doing the householdchores during weekends. When Nilo wakes up on weekends, his mother is alwaysin the kitchen preparing breakfast. The kitchen is wherenutritious meals are prepared and cooked. It is also wheredishes and utensils are washed and kept. When the food is ready, Nilo helps his mother preparethe food in the dining room. It is where the family eats theirmeals. After eating, Nilo always wipes the table and sweepsthe floor. After breakfast, everyone is ready to clean the house.Nilo’s mother cleans the kitchen and the dining room. Nilohelps his sister in cleaning the living room. This is wherethe family entertains their visitors. Nilo wipes the applianceswith a clean rag. His sister sweeps and scrubs the floor. Outside the house, Nilo’s dad starts cleaning the yard. Healso cleans the garage. This is where the car is parked. It isalso the place where Nilo keeps his bike. After Nilo helps in cleaning their house, he cleans hisbedroom with the help of his older brother. The bedroom iswhere Nilo rests and sleeps. Do you help clean your house like Nilo does? Why do youneed to clean your house? A house is the place where a family lives in. When youare in your house, you feel safe because you are with yourfamily. A child like you needs a safe house to live in. It is important to keep your house clean. By keeping itclean always, harmful insects will not live in your house. Youalso have fresh air when your house is clean. The Body You Are Gifted With 
    • How can you and your family make your house safe? Look at the following pictures. aste Wet W Dry Waste Put locks on the doors of your Throw your wastes in the proper house. trash cans. Store harmful substances like Change the water in flower vases pesticides in a cabinet where regularly. children cannot reach them. A house is important for a family. It protects you from the changing weather and harmful things in your surroundings. It is the duty of each family member to keep the house safe and clean. Science Works! 1
    • Can You Find Me?Objective: Identify the objects that do not belong in the dining room.Materials: pencil, crayonsProcedure: Below is the dining room in Nilo’s house. Identify whichobjects do not belong in the dining room. Mark them with an. Give a reason for each answer.• A house protects people from the changing weather and harmful things in the surroundings.• It is the duty of each family member to keep the house safe and clean. The Body You Are Gifted With 
    • Civics and Culture In Batanes, the northernmost part of the Philippines, the Ivatans live in houses made of thick stonewalls and lime, covered with thick layers of cogon. This kind of house protects the Ivatans from strong and frequent typhoons that visit their province. Ivatan house Source : http://www.visitmyphilippines.com/index.php?title=Batanes&func=all&pid=424&tbl=0 (accessed on 17 May 2011) Identify the part of the house that is described in eachnumber. Write the letter of the answer on the blank. a. bedroom b. living room c. kitchen d. dining room e. garage______ 1. It is where the family eats nutritious meals.______ 2. It is where you rest and sleep.______ 3. It is where the family prepares and cooks food.______ 4. It is where the family entertains visitors.______ 5. It is where the family parks the car. Science Works! 1
    • Lesson 8 Your Body Needs Exercise, Recreation, Rest, and Sleep Look for the given words in the puzzle. Encircle eachword that you will find. exercise nap recreation rest sleep p v e x e r c i s e l r f s d t y l t w r e c r e a t i o n m s q w z x c v i a Y t u h j s l e e p In this lesson, you will be able to answer the followingquestions: 1. Why is there a need to have enough rest and sleep? 2. Why are exercise and recreation good for the body? The Body You Are Gifted With 
    • One morning, Ben wakes up very happy. He had a goodnight’s sleep and rest. Today is also his biking day withNilo. They will go to the park to bike. Biking is their form ofexercise. Like Ben and Nilo, growing children like you need restand exercise. After doing your activities, how do you feel? Wheneveryou feel tired, it means that you have lost a large amount ofenergy. To regain the lost energy, you need to rest. When yourest, you give your muscles and the other parts of your bodya chance to relax, too. Resting helps keep the body in goodshape. The best way to rest is by sleeping. A lot of things happenin the body when you sleep. During sleep, your body grows.It is also during this time that wounds and cuts heal faster.Before going to sleep, make sure that your body is clean. Yourclothes should be clean and comfortable, too. A child your age needs about 10 to 12 hours of sleep. Ifyou do not get enough sleep, you will feel tired and restless.You will also find it hard to think clearly. There are times thatyou can get sick because you lack sleep. People who do notget enough sleep may suffer from dizziness, headache, andmuscle pains. Have you experienced sleeping for a few minutes? It iscalled a nap. A nap is a short sleep. It is also a good form ofrest.0 Science Works! 1
    • Another thing that you need is exercise. It helps developyour muscles and bones. When your muscles and bones arestrong, you can perform well in your activities. As a result,you can do better in school. You will also have extra energy todo other things. How do you exercise? You also need recreation. It is a form of play oramusement. Recreation is important to keep you alert, active,and creative. When you join a recreational activity, you canmeet new friends. You also develop your talents and skillslike singing, dancing, drawing, or playing instruments. Whatrecreational activity do you enjoy? My Body on the MoveObjective: Identify the benefits of recreational activities.Materials: picture of yourself doing your favorite activity, glue, colored pencilsProcedure: 1. Bring a picture of yourself doing your favorite recreational activity. 2. Paste it in the box on the next page. You may use a separate sheet of clean paper if your pictures does not fit in the box. 3. Write why you chose this kind of recreational activity. 4. Share your work with your seatmate. The Body You Are Gifted With 1
    • _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ Physical Education Biking is a good form of exercise. It keeps the body healthy in many ways. It improves your muscles and bones. Biking also makes your heart muscles strong. Make sure to wear safety gear such as a helmet, and knee and elbow pads when you go biking with your family or friends.• Exercise keeps your muscles and bones strong.• Aside from exercise, your body also needs rest, sleep, and recreation.• When you rest, you give your body a chance to relax and regain lost energy.• During sleep, your body grows. Wounds and cuts also heal faster. Science Works! 1
    • Encircle the letter of the correct answer.1. How many hours of sleep does a child need? a. 3 to 5 b. 5 to 7 c. 10 to 122. Why do children need to have enough hours of sleep? a. Sleep helps them make new friends. b. Sleep heals cuts and wounds faster. c. Sleep develops their talents and skills.3. Why do children need to join recreational activities? a. to keep them alert, active, and creative b. to keep them from sleeping c. to keep them busy all day4. What will happen if children do not get enough sleep? a. They will be active and alert. b. They will get sick. c. They will grow healthy and strong.5. Which group of activities exercises the body? a. biking, jogging, watching TV b. eating, reading, sleeping c. biking, jogging, walking The Body You Are Gifted With 
    • Lesson 9 Love and Care for a Healthy You What do you know about the following words? Draw youranswers in each box. e L ov e C ar In this lesson, you will be able to answer the followingquestions: 1. Why do children need love, care, and attention? 2. How do you show your love and care for your family, relatives, and friends? Science Works! 1
    • Sunday is family day. Carla, Nilo, and Alice are veryexcited to spend the whole day with their families. The threechildren live with their own parents. They also have brothersand sisters. Their parents love them. Their brothers andsisters love them, too. Ben’s grandparents take care of him. His father andmother work abroad. Ben’s grandparents are his guardians.They love Ben. All their parents and guardians make sure that Carla,Nilo, Alice, and Ben’s basic needs are met. They providethem food, shelter, and clothing. The children’s families also spend quality time withthem. They help them with their homework and projects.Nilo’s older brother goes with him in the park to fly kites.Carla’s mother joins her when she reads books. Alice’s fathergoes biking with her. Ben’s grandfather helps him in takingcare of the plants in their yard. Aside from their parents,brothers and sisters, they also have cousins, aunts, uncles, andother relatives who give them love and care. Like these four children, a growing child like you needslove and care from your family. Aside from your family, youalso have friends and classmates who love and care for you.At school, you also have your teachers who look after yourneeds. You must show love and respect to your family, too. Youcan show these by obeying them, helping them with thehousehold chores in your own little way, and taking care ofthe things they give you. The Body You Are Gifted With 
    • Showing My LoveObjective: Draw pictures that show ways of loving and caring for other people.Materials: pencil, crayonsProcedure: In each box below, draw pictures that show ways ofloving and caring for the following persons. Color eachpicture. s Brothe Parent or Siste r r Teacher Civics and Culture Every child has basic rights that must be met. Some of these are the right to education, the right to play, the right to rest, the right to a name, and the right to be protected from any harm. These rights are recognized and put into effect through laws by leaders of different countries all over the world. Source: http://www.unicef.org/crc/ (accessed on 17 May 2011) Science Works! 1
    • • A growing child needs love and care.• It is important to show love and respect to the people around you. Encircle the pictures that show love and care. The Body You Are Gifted With 
    • A. Cross out () the word that does not belong to the group. 1. abdomen eyes hair nose 2. wrist leg knee chest 3. waist shoulder elbow abdomen 4. nose feet eyes ears 5. chin forehead neck lipB. Analogy describes how two things are alike. Fill in the blanks to show likeness between things. 1. Comb is to hair as nail cutter is to ___________________. 2. Hair is to shampoo as hand is to ___________________. 3. Thin clothes are to a sunny day as thick clothes are to ___________________. 4. Hat is to head as shoes are to ___________________. 5. Carrot is to glow food as rice is to ___________________.C. Encircle the letter of the correct answer. 1. Which of the following is an energy-giving food? a. bread b. fruit c. meat 2. In which part of the house do you sleep and rest? a. bathroom b. bedroom c. dining room 3. Why do you need to exercise? a. It makes you creative. b. It makes wounds and cuts heal faster. c. It makes muscles and bones grow strong. 4. Which of the following is an example of a grow food? a. cake b. fish c. cereal 5. How many glasses of water should you drink each day? a. 2 to 4 b. 4 to 6 c. 6 to 8 Science Works! 1