Across
- 2. portion of matter
- 4. liquids,gases
- 5. close together
- 7. freely moving substance
- 8. energy
- 12. that convey energy
- 14. heat
- 16. hotness,coldness
- 18. way things work together
- 19. traveling heat
- 20. sample of matter
Down
- 1. to move
- 3. mass
- 6. blocker
- 9. motion
- 10. Kinetic energy
- 11. position an object has
- 13. physical substance
- 15. work
- 17. stable object