Across
- 2. molecules can slip and slide
- 3. when solid becomes liquid
- 4. when liquid becomes solid
- 6. changes that CAN be undone
- 8. molecules tightly packed together
- 10. changes that CANNOT be undone
- 11. when solid becomes gas
- 12. when gas becomes liquid
Down
- 1. motion energy
- 5. when liquid becomes gas
- 7. solid that forms in a solution
- 9. molecules are high energy and fly around