Across
- 4. the state of matter where the particles are free
- 6. the average kinetic energy of the particles in a substance
- 8. The change of state where particles escape only on the surface
- 9. when melting, the particles in a substance start to move ___________
- 10. A gas has no definite _______ or volume.
- 11. the state of matter where the particles can slip past each other
- 13. the amount of space matter takes up
- 14. Thermal energy can only flow from ___________ to colder places.
Down
- 1. The change of state from a liquid to a gas
- 2. the transfer of thermal energy
- 3. The change of state from a liquid to a solid
- 5. the state of matter where the particles only vibrate
- 6. the total kinetic energy of the particles in a substance
- 7. A change in state is a ________________ change
- 12. When a gas condenses, the particles start to move ____________