Across
- 3. cool air is heavy so it will __
- 5. wind happens in the __
- 8. plants release __ or O2
- 10. let out
- 12. air particles close together
- 13. plants absorb __ from the soil
- 15. take in
- 16. plants absorb __ or CO2
Down
- 1. plants make __ in the leaves to eat
- 2. warm air is light so it will __ up
- 4. air particles far apart
- 6. plants transform sunlight energy into food energy
- 7. plants absorb __ or H2O
- 9. all plants need __ for photosynthesis
- 11. change
- 14. moving air particles