Across
- 2. has a fixed volume but no definite shape
- 5. the attractive force that holds atoms and ions together
- 8. Anything with mass and takes up space chemicalbonds
- 9. how many atoms of each element are in a unit of a substance
- 10. the ability to change or move matter
- 11. amount of space someone or something takes up
- 12. the change of a substance from a liquid to a gas
- 13. the ability to burn
- 15. the tempature in which a liquid becomes a gas
Down
- 1. the combination of two or more substances
- 3. absence of matter
- 4. has no fixed volume and expands indefinitely
- 6. the temperature and pressure at which a solid becomes a liquid
- 7. the change from a gas to a liquid
- 9. has a fixed shape and volume
- 14. atomes form together to make millions of these