Across
- 2. gas changing directly to a solid
- 4. a change from one state of matter to another
- 6. a state of matter with loosely packed particles; has a definite volume but no definite shape
- 8. the amount of "stuff" in an object
- 9. removing thermal energy
- 10. a high-energy state of matter made of charged particles; common in stars and lightning
- 11. solid changing to a liquid
- 12. something that does not have mass or volume (not matter
- 14. a state of matter with tightly packed particles; has a definite shape or volume
- 16. liquid changing to a gas
- 17. temperature where a liquid becomes a solid
- 20. the tiny basic building block of all matter
- 23. temperature where a solid becomes a liquid
- 24. gas changing to a liquid
- 25. solid changing directly to a gas
Down
- 1. temperature where a gas becomes a liquid
- 3. a characteristic that describes a substance's ability to change into something new
- 5. a characteristic that can be observed or measured without changing the substance
- 7. temperature where a liquid becomes a gas
- 13. liquid changing to a solid
- 15. the amount of space an object takes up
- 18. a state of matter with very loosely packed particles; has no definite shape or volume
- 19. energy related to heat and particle movement
- 21. anything that has mass and takes up space
- 22. adding thermal energy