Across
- 2. when the particles in matter are not moving much
- 5. a new substance is formed
- 6. when a liquid turns into a solid
- 7. when a solid turns into a liquid
- 9. when a liquid turns into a gas
Down
- 1. no new substance is formed
- 3. when two things are combined but can be separated
- 4. wants to expand and fill as much space as it can
- 5. when a gas turns into a liquid
- 8. a type of energy also known as heat energy
