Across
- 3. substances that help the things grow
- 6. when the seed begins to grow
- 8. to increase in size or amount
- 9. to think about the future
- 11. the top layer of the ground
- 12. when plants use sunlight, water, and CO2 to make food
Down
- 1. to be fully developed
- 2. tiny openings on a leaf for oxygen and CO2
- 4. sugar made by plants
- 5. gas we inhale
- 7. to create or produce
- 10. the green color in plants that help them absorb light
- 13. light from the sun