Across
- 2. water vapor condenses to a liquid
- 4. when water gets cold and turns to ice
- 5. dry ice turns from a solid to a gas
- 7. firm and stable
- 8. substance or matter in a state in which it will expand freely to fill the whole of a container
- 9. substance that flows freely but is of constant volume
- 10. water becomes water vapor
Down
- 1. a group of atoms bounded together
- 3. a gas
- 6. the basic unit of a chemical element