Water-A Precious Resource Worksheet-4

Water-A Precious Resource Worksheet-4

Fill in Blanks

1. Water can exist in the three states of _____.

2. Rainwater percolates through different layers of soil by the process of ____.

3. The continuous exchange of water between oceans, land and atmosphere occurs through ­­­_____.

4. Farmers in our country depend on _____ water for agriculture.

5. ____ is an artificial wall built across a river in order to regulate water flow.

True or False

6. As we go to higher altitude the external pressure on the water is decreased, therefore the water will boil at a lower temperature so it will take more time to cook anything.

7. Air cooler use the principle of evaporation of water.

8. After a hail storm the weather becomes very cold because on melting hail takes up heat from the atmosphere.

9. The moisture evaporates slowly at the higher elevation.

10. The amount of water on the earth’s surface is constant because of water cycle.

11. Water from rivers is the only source of drinking water.

12. About three-fourth of the earth’s surface is covered by water.

13. Groundwater is also called an Aquifer.

14. India is on the verge of facing shortage of water.

Answer Key:

1. Matter
2. Precipitation
3. water cycle
4. Rain
5. Dam
6. True
7. True
8. True
9. False
10. True
11. False
12. True
13. True
14. True