Across
- 3. the process of changing from a liquid to a gas
- 6. how heavy something is
- 7. the process of changing from a solid to a liquid
- 9. particles are closely packed together
- 10. the melting point or freezing point for water
- 13. the boiling point of water
- 14. helps particles lose energy
- 16. anything that has weight and takes up space
- 17. adds energy to the particles
Down
- 1. how much space something takes up
- 2. how solid particles move
- 4. the process of changing from a liquid to a solid
- 5. causes changes in how particles move
- 8. force that holds particles together
- 11. particles can slide past each other
- 12. the process of changing from a gas to a liquid
- 15. particles move freely and are far apart