Across
- 2. power
- 4. liquifying
- 5. something solid
- 9. the amount of space an object occupies
- 11. turning into vapour
- 15. getting bigger
- 16. getting smaller
- 17. flowing
- 18. solid to gas
- 19. below 0 degrees Celsius
Down
- 1. gas to solid
- 3. a small bit of matter
- 6. moving
- 7. water being dense
- 8. solid, liquid, or gas
- 10. how much is in an object
- 12. how hot or cold something is
- 13. expands freely
- 14. how dense something is