Across
- 3. when a solid changes into a liquid
- 5. how much matter is in something
- 7. how easily a liquid flows
- 11. how hot or cold something is
- 12. able to be squeezed into a smaller space
- 14. when liquid changes into gas at the surface
- 15. when liquid changes into gas throughout the liquid
- 17. when a solid changes straight into a gas
- 18. model a way to show that matter is made of tiny moving particles
Down
- 1. energy energy that moves from something warmer to something cooler
- 2. how tightly matter is packed together
- 4. something that spreads out and fills a space
- 5. anything that has weight and takes up space
- 6. when gas changes into liquid
- 7. how much space something takes up
- 8. when a liquid changes into a solid
- 9. something that keeps its own shape
- 10. when a gas changes straight into a solid
- 13. something that flows and takes the shape of its container
- 16. a tiny piece of matter