Across
- 2. anything that can be weighed and take up space
- 6. water which collects on the outside of cold cups
- 7. becoming solid from the cold
- 9. gas to solid
- 12. basic unit of a chemical element
- 13. state of matter that keeps shape
- 14. when matter changes from one form to another
Down
- 1. becoming liquified by heat
- 3. chemical substance that can be broken down
- 4. becoming vapor from liquid phase
- 5. state of matter that flows freely
- 8. solid to gas
- 10. state of matter that has charged particles
- 11. chemical substance composed of two or more elements
- 15. state of matter that is in the air everywhere