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