Across
- 3. a natural shape in a substance
- 4. a state of matter where atoms are fairly close together and can flow
- 7. changing from liquid to gas
- 10. what everything is made of
- 11. the amount of matter that fills a defined space
- 12. an unknown element or compound
Down
- 1. a state of matter where atoms are far apart
- 2. a small piece of something
- 5. to change from liquid to gas
- 6. to keep the same amount
- 8. the amount of "stuff" in something
- 9. a state of matter where atoms are close together