Across
- 2. when a solid becomes a liquid
- 4. when a gas becomes a solid
- 8. when a solid becomes a gas
- 9. causes particles to slow down and get closer together
- 10. particles are moving very fast and bouncing off the walls
- 12. when a liquid becomes a solid
- 13. anything that has mass and volume
- 14. particles are tightly packed and vibrating
- 15. when a liquid becomes a gas
Down
- 1. particles are moving past one another and moving quicker
- 3. the amount of space something takes up
- 5. is a result of collisions from particles
- 6. causes particles to speed up and spread out
- 7. when a gas becomes a liquid
- 11. make up matter and has mass
- 13. the amount of stuff in something