Across
- 2. below 32°F
- 3. a state of being thick and sticky
- 9. a physical change of state
- 13. the pressure of a vapor in contact with its liquid or solid form
- 15. a substance that flows freely but is of constant vol
- 16. when a substance goes from a solid to a gas without turning into a liquid
- 17. a reaction requiring absorption of heat
- 18. a tension on the surface film of a liquid
Down
- 1. at or near boiling point
- 4. water collects as droplets on a cold surface when humid air is in contact with it
- 5. Firm and stable shape
- 6. without a clearly defined shape
- 7. 32°F
- 8. the temperature at which a liquid boils and turns to vapor
- 9. having a structure and form a crystal
- 10. the process of turning a liquid into vapor
- 11. substance or matter in a state which it will expand free
- 12. becoming liquified by heat
- 14. accompanied by a release of heat