Across
- 2. N is the element symbol for
- 3. mass per unit volume
- 7. gas changes to a liquid
- 9. C is the element symbol for
- 11. how much space an object takes up
- 14. solid changes to a liquid
- 16. total kinetic energy of the particles
- 17. liquid changes to a gas
- 19. Na is the element symbol for
Down
- 1. subatomic particles with no charge
- 4. average kinetic energy of the particles
- 5. subatomic particles with positive charge
- 6. Bo is the element symbol for
- 8. O is the element symbol for
- 10. He is the element symbol for
- 12. Li is the element symbol for
- 13. subatomic particles that orbit the nucleus
- 15. liquid changes to a solid
- 18. the amounts of matter in an object