Matter around us

2. The movement of air, vapours of scent and smoke from one place to other is known as ________
4. Anything in this world that occupies space and has mass is considered as
5. ____ have forces acting between them that keeps the particles together.
6. diffusion faster into ______
7. liquids and gases are known as ________
10. _____________is used in many auotmobiles
13. have a definite shape and a fixed volume.
14. ________is a brownish coloured gas.
16. During _________ oxygen diffuses from lungs into blood.

1. _________ substances that change directly from solid state to gaseous state and vice versa without passing through the liquid state
2. __________ can be possible only when the particles of matter move continuously
3. _________ diffuses from blood into lungs
8. takes different shapes depending on the shape of the container its volume remains same.
9. can exist as a solid (ice), a liquid or as a gas (water vapour)
11. neither have a fixed shape nor fixed volume.
12. ________is a solid but if we leave it in the open air for some time it directly changes to gas
15. _________is used for cooking.