Across
- 3. Some light passes through it and some does not
- 4. What a solid does when you add heat
- 6. A particle that cannot be divided with everyday tools
- 9. A material that is not in the gas state and is not in the solid state
- 11. A material dissolved in a liquid
- 12. Oxygen is one of these
- 13. Something that has mass and takes up space
- 14. It keeps you from floating off into space
- 15. Something light cannot pass through
- 17. A new material formed when something combines with oxygen
- 18. The state of matter that has a fixed shape and a fixed volume
- 19. Something that has mass and takes up space
Down
- 1. The change from a gas to a liquid
- 2. What iron does when it reacts with oxygen
- 5. What water is doing at 212 degrees Celsius
- 7. How much matter is in something
- 8. How much space something takes up
- 10. Two pure materials scrambled together
- 16. Either an atom or a molecule