Across
- 5. when a gas changes directly into a solid
- 7. any material that does not conduct heat easily
- 9. when a liquid turns into a gas
- 10. change when the molecules of matter change into a new substance
- 12. when matter changes properties but the molecules do not
- 16. the portrayal of someone in a particular way
- 18. anything that has mass and takes up space
- 19. when heat moves from one type of matter to another
- 20. when a liquid turns into a solid
- 21. a state of matter with a fixed shape and volume
Down
- 1. when a gas turns back into a liquid
- 2. a state of matter with no fixed shape or volume
- 3. any material that allows heat to transfer easily
- 4. a rule that says the amount of matter always stays the same
- 6. the process of matter changing state
- 8. the form that matter is in
- 11. a group that has smaller numbers than another group
- 13. when a solid turns into a liquid
- 14. a measurement of how much matter or molecules is in an object
- 15. a state of matter without a fixed shape but a fixed volume
- 17. when a solid changes directly into a gas