MCQ on Class 3 Air Water and Weather

1. ………… is a thin layer of ice crystals that is formed due to very cold weather.

2. The process of converting liquid water into gas is called ……………..

3. The cool air from the sea moves towards the land and replaces it. It is known as ……………

4. Our planet is surrounded by a blanket of air called …………

5. A chemical called…………… is added to water to kill germs.

6. Mist is a mild form of fog.

7. ………………. involves passing unclean water through filter paper.

8. ……………… are very strong winds that can cause damage and destruction

9. Rain, dew, frost, and fog are all types of water.

10. The amount of water vapor in the air is called ……………

11. The hot air moves in……………..direction.

12. About 78% of this gas is found in the atmosphere…………

13. ………. is a mixture of gases such as oxygen, carbon dioxide, water vapour, smoke, and dust.

14. ……………. impurities are those impurities in water that are visible but are not soluble in water

15. The term ……………… refers to a form of liquid or solid water falling to Earth from the atmosphere.

16. Water droplets or ice crystals suspended in the air are called …………..

17. At night …………….. is the cool air from the land that flows towards the sea.