Matter in our surroundings

2. they are made up of 2 or more atoms.
3. hidden heat that cannot be obtained in a thermometer and changes state of matter completely.
5. A process of conversion of liquid state into gaseous state at any temperature.
8. It is a process in which gas changes into liquid by decreasing the temperature at the atmospheric pressure.
11. A process in which solid directly changes into gas without changing into liquid state by increasing and decreasing the temperature.
13. they are made up of different kind of atoms combined chemically in a fixed ratio.
15. Its a bulk phenomenon which causes heating and rise in temperature of surroundings.
16. they are the building blocks for all forms of matter
18. the spreading out and mixing of particles of matter in a meduim.

1. The tendency to flow.
2. temperature at which solid starts melting.
4. A change of gaseous state directly to solid state without going to liquid state.
6. The property showing compressing nature of a matter.
7. Energy produced due to movement of particles.
9. solid carbon dioxide which gives cooling effect of ice but does not give any moisture.
10. Mass per unit volume of a substance.
12. Temperature at which liquids start boiling.
14. Property of a body showing hardness of a substance.
17. they are constituted by more than 1 kind of pure form of matter.