Across
- 1. the amount of matter in an object
- 4. how much space a substance takes up
- 5. basic building unit of life
- 7. matter moves fast with no fixed shape
- 8. when a solid or liquid becomes a gas
- 10. when a gas becomes a liquid
- 12. when a liquid becomes a solid
- 13. particles slide over each other
- 15. how particles move in a substance
Down
- 2. when a solid changes into a gas
- 3. when a solid becomes a liquid
- 6. when matter is neither created or destroyed
- 9. when a gas becomes a solid
- 11. temperature when liquid becomes a gas
- 14. particles vibrate in place-close together