Sources of water'13 14-a

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Sources of water'13 14-a

  1. 1. Sources of Water /Uses of water Prepared by: Shirley Puaso –Valera Grade 3 – St. Francis / St.Augustine / St. Maria Goretti
  2. 2. Key Questions: A. Why is water important? B. How can you keep our water clean and safe to use?
  3. 3. Objectives A. Explain the importance of water. B. Identify the sources of water. C. Describe the uses of water.
  4. 4. Review of the past lesson Factors that harm the soil
  5. 5. Describing the picture Questions: A. What is it? B. Have you seen a body of water like this? C. How does water help us?
  6. 6. Wheel Diagram Write a word/s on each spoke that is related to the word inside the wheel. water
  7. 7. Sources of Water 1.Salt water from seas and oceans - most of the water that covers the earth’s surface is ocean water. There are many minerals in the oceans, but salt is the most common . Salt comes from minerals that are carried down into the seas and oceans. This is the reason why ocean water is salty. ( when salt water in a basin is placed , water evaporates into the air, the salt remains in the basin
  8. 8. Sources of Water 1. Salt water from seas and oceans - Scientist say that the ocean produces 805 of the oxygen we breathe. This is possible because of planktons, the tiny –releasing organisms that live in the oceans and seas. - Seawater is the habitat of aquatic plants and animals
  9. 9. Sources of Water 2. Fresh water from rivers , lakes , and ponds - it does not contain salt - It is rainwater that flows from land into streams and rivers. - It is usually used for cleaning, washing, bathing, and other household chores
  10. 10. Sources of Water 2. Fresh water from rivers , lakes , and ponds - it is easily become polluted because they are open. - People can throw domestic and industrial wastes into it
  11. 11. Groundwater - Is kept in a closed container called the water table. - This condition prevents it from becoming dirty - It is safe from domestic wastes - It is safe from poisonous chemicals
  12. 12. Groundwater - It is safe source of water. Considered the cleanest water and contains plenty of dissolved minerals that the human body needs.
  13. 13. Groundwater - It is a safe and direct source of water for cooking and drinking. - Most of the subdivisions and residential areas that do not have public water facilities get their water from groundwater. They usually have deep well that provide them water for their needs
  14. 14. Groundwater - Is kept in a closed container called the water table. - This condition prevents it from becoming dirty - It is safe from domestic wastes - It is safe from poisonous chemicals
  15. 15. Water in the air - Water moves from the air to the land, and from the land to the air. This movement of water between the air and land is called water cycle .
  16. 16. Water in the air - Water cycle is a very important cycle. - It goes on all the time. Without it , life on Earth would be impossible
  17. 17. Water Cycle
  18. 18. Group singing This is the way we take a bath( 3x) This is the way we take a bath so early in the morning Change take a bath to: water plants, wash our clothes , clean our house
  19. 19. Think –Pair-Share Identify some other uses of water
  20. 20. Activity 8.3: Importance of water Problem: How does water help us? What you need: pictures of the following: a ship traveling in the sea a girl drinking water a pond with animals in it a family on the beach
  21. 21. Activity 8.3: Importance of water What to do: 1.Get a partner to work with on this activity. 2.Look at the pictures. 3.Study the importance of water in each picture? What have you found out?
  22. 22. Activity 8.3: Importance of water What have you found out? 1. What can a ship do? What is the ship dong in the water? __________________________ 2. What is the girl doing? __________________ 3. What are the animals doing in the pond? _________________________________ 4. What is the family doing on the beach? ____________________________________
  23. 23. Activity 8.3: Importance of water Conclusion: What are the uses of water to people and other living things? _______________________________________ _____________________________________ _____________________________________ _____________________________________ _____________________________________ _____________________________________
  24. 24. Presentation
  25. 25. Different uses of water using the converging radial. -some water forms are used for recreational purposes -one can go skiing, swimming, or boating in these places -water is also used in farms for irrigation and in industries for manufacturing products. Homes to fishes, other sea animals, and plants. ( used for food, medicine , and decoration Uses of water -basic needs of humans -clean water is used for drinking, cooking, cleaning, and taking a bath -ships and water vessels, travel in big bodies of water to transport people and goods from one place to another
  26. 26. Generalization • Water covers about three-fourths of the earth’s surface. • Water comes from different sources. The different kinds of water are: salt water from seas and oceans; fresh water from rivers, lakes , and ponds; ground water beneath the earth’s surface; and water in air.
  27. 27. Valuing • Water conservation
  28. 28. Evaluation A. Write YES if the statement is correct and NO if it is not. (p.302-A) B. Answer the following. 1. What are the uses of water to living things? 2. Why is water cycle important?

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