Across
- 5. The way in which heat is trapped close to Earth's surface
- 6. Cutting down the trees
- 7. Raw material needed for photosynthesis that is taken in by the roots of the plant
- 8. What is the light energy converted to in photosynthesis?
- 9. Chemical that kills weeds
- 10. Chemical farmers use to keep the soil healthy
- 11. What is the green pigment that is found in chloroplasts?
- 14. Main product of photosynthesis
- 16. Chemical to kill fungus infections
Down
- 1. What is the chemical that is used to test for starch?
- 2. Gas required for photosynthesis
- 3. Chemical to kill pests
- 4. An alternative to adding chemicals to crops
- 8. Long-term shifts in temperatures and weather patterns
- 12. Plants need this chemical to help them make protein for healthy growth
- 13. Introduction of harmful materials into the environment
- 15. Product of photosynthesis that we breathe in