Across
- 4. smallest molecule
- 5. heat
- 8. when solids turn to gas
- 11. things you can touch
- 12. molecules move in shape of container
- 13. different types and changes
Down
- 1. when liquids turn to solids
- 2. when liquids boil to gas
- 3. when gas turns to liquid
- 6. when solids turn to liquids
- 7. dry ice is made of this
- 9. molecules float in the air
- 10. what makes up the world