Across
- 2. When a liquid becomes a solid
- 4. _____ remains enchanged when a material changes state
- 7. A synonym for convert and change
- 8. When a solid or gas transforms into a liquid
- 9. One of the main states of matter that is firm
- 10. When something hardens to become a solid
- 12. When a liquid becomes a gas
Down
- 1. When a solid transforms directly into a liquid
- 3. One of the main states of matter that will expand freely to fill a space
- 5. When a gas transforms into a liquid
- 6. When a solid becomes a liquid
- 11. One of the main states of matter that flows freely