EVS 3_Ch 8(Air and Water) Part 2

EVS 3_Ch 8(Air and Water) Part 2

by Angelita Comilang

​Learning Objectives:

• Discuss the importance of water.

• ​Identify the different forms of water.

• ​Explain how water cycle occurs in nature.

​What are the importance of water?

​Water is essential to the survival of all living beings. Plants, animals and human beings need water.

​

​Some of the uses of water are:

​1. It is used by farmers to water their fields.

​Some of the uses of water are:

2. Gardeners need water their plants so that they can grow well.

​Some of the uses of water are:

3. Some people cultivate fish for selling. Such places need a lot of water to breed the fish.

​Some of the uses of water are:

4.We need water for drinking, cooking and washing clothes.

Multiple Choice

17. Water is essential for the survival of all living beings.

• A. true

• B. false

Multiple Choice

18. Which of the following below needs water?

• A. plants

• B. animals

• C. human

• D. all of these

Multiple Choice

19. Water is used by farmers to water their fiel

• A. true

• B. false

Multiple Choice

20. Gardeners need to water their plants so that they can grow well

• A. true

• B. false

Multiple Choice

21. Some people cultivate fish for selling. Such places need a lot of air to breed fish.

• A. true

• B. false

Multiple Choice

22. Human needs water for

• A. drinking

• B. washing

• C. cooking

• D. all of these

​Where does the water come from?

​Where does the water come from?

​Rain is one of the major sources of water.

​Wonder Box

​1.Pure water does not contain any minerals.

​

​2.The water we drink has a lot of minerals present in it.

​3.Water is also used to produce electricity it is called hydroelectricity.

​What are the three forms of water?

​

​3 forms of water

​Ice- is the solid water

​Water- is the liquid water

Water vapour- is the gaseous water

​Therefore water can be of

​solid, liquid and gas forms

Multiple Choice

2. Water is present in our body

• A. true

• B. false

Multiple Choice

2. Water is present in food such as milk, water melon and tomatoes

• A. true

• B.false

Multiple Choice

25. Water is used to produce electricity

• A. true

• B. false

Multiple Choice

26. What are the 3 forms of water?

• A. ice

• B. water

• C. water vapour

• D. all of these

Multiple Choice

27. A water in solid form is called____

• A. ice

• B. water

• C. water vapour

• D. all of these

Multiple Choice

2. A water in liquid form is called____

• A. ice

• B. water

• C. water vapour

• D. all of these

Multiple Choice

29. A water turns into gas is called____

• A. ice

• B. water

• C. water vapour

• Dall of these

Multiple Choice

30. Potable water is the water which is safe to drink

• true

• false

​What is a Water Cycle?

​What is a Water Cycle?

​Water Cycle- is the natural cycle of water in which it changes from one form to another.

​Evaporation-the process by which water changes into water vapour(gas).

​Water from oceans, rivers and ponds heated by the sun it will change into gas, it is called water vapour.

​ Condensation- is the process by which water vapor changes into water.

​Precipitation

​

​is water falling down as hailstones, rain or snow.

​Collection

​This is when water that falls from the clouds as rain, snow, hail or sleet, collects in the oceans, rivers, lakes, streams.

Multiple Choice

31. It  is the natural cycle of water in which it changes from one form to another is called ______ 

• A. evaporation

• B. precipitation

• C. water cycle

• D. condensation

Multiple Choice

32. It is the process by which water vapour changes into water is called _____

• A. evaporation

• B. precipitation

• C. water cycle

• D.condensation

Multiple Choice

33. It is the process by which water changes into water  vapour is called _____

• A. evaporation

• B. precipitation

• C. water cycle

• D. condensation

Multiple Choice

34._______is the water falling down as hailstones, rain or snow

• A. evaporation

• B. precipitation

• C. water cycle

• D. condensation