crossword

1. the measurement of how tightly a material is packed together
7. also known as solidification
9. uperheated matter – so hot that the electrons are ripped away from the atoms forming an ionized gas
10. The process by which a substance changes from a solid-state to a liquid state
11. he process due to which a liquid changes into a solid state at some fixed temperature with the release of heat energy
12. very small size solid of liquid particle on earth's atmosphere
15. the process by which a liquid turns into a vapour when it is heated to its boiling point
16. the measure of how much a given volume of matter decreases when placed under pressure
18. the temperature of a liquid at which it changes its state from liquid to solid at atmospheric pressure
19. gaps between the constituent particles.
20. random movement displayed by small particles that are suspended in fluids

2. The change of the solid state of the matter directly on heating to vapour state
3. Anything that has mass and occupies space
4. the energy that an object has as a result of its movement
5. energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.
6. The process of movement of a substance (solid, liquid, or gas) from the region of higher concentration to the region of lower concentration so as to spread uniformly
8. the ability of a substance to flow
13. The phenomenon of change of a liquid into vapours at any temperature below its boiling point
14. the ability of a solid to change its shape
17. the process through which the physical state of matter changes from the gaseous phase into the liquid phase.