Across
- 4. helps the roots grow
- 5. what gives us light during the day
- 9. what do we need to breath
- 11. to keep a plant alive
- 12. reflects off plants
- 13. we need to drink
- 15. variable that you changed
Down
- 1. used to see invisible ink
- 2. what do we breath out
- 3. travels sugars through the plant
- 6. gives us oxygen
- 7. how hot/cold is it
- 8. variable that you investigate
- 10. travels water through the plant
- 14. the plants openings