Solid, Liquid and Gases Worksheet-12

Solid, Liquid and Gases Worksheet-12

True or False:

1. A gas has no shape or size of its own.
2. A solid has no shape or size of its own.
3. Moving air is called wind.
4. Moving air is called water.
5. Air is a mixture of many gases.
6. We breathe in a gas called oxygen.
7. We breathe in a gas called nitrogen.
8. We breathe in a gas called carbon.
9. We breathe in a gas called hydrogen.
10. Oxygen is a gas.
11. Oxygen is a liquid.
12. Oxygen is a solid.
13. Living things need oxygen.
14. Non-living things need oxygen.
15. Water freezes to form ice.
16. Ice melts to form water.
17. Ice evaporates to form water.
18. Steam condenses to form water.
19. The process of changing a gas into a liquid is called condensation.
20. The process of changing a liquid into solid is called melting.

Answer:

1. True
2. False
3. True
4. False
5. True
6. True
7. False
8. False
9. False
10. True
11. False
12. False
13. True
14. False
15. True
16. True
17. False
18. True
19. True
20. False