Vocab

Across

2. temperature
4. internalenergy
7. liquid
8. kineticenergy
11. matter
14. energytransfer
17. statesofmatter
20. potential
21. thermalequilibrium

Down

1. molecule
3. melting
5. gas
6. condensation
9. collition
10. atom
12. heat
13. freezing
15. pressure
16. boiling
18. thermalenergy
19. solid