Across
- 5. perform the most photosynthesis
- 7. gas needed for photosynthesis
- 9. travels in the phloem
- 10. energy for photosynthesis
- 12. arrangement of the lower leaf cells
- 14. exits the leaf through stomata
- 15. how plants retain water
- 16. water leaving the leaf
- 17. prevents water evaporating out of the top of the leaf
- 19. traps the sun's energy
- 20. stomata during the day
- 21. travels up the xylem
Down
- 1. like tiny mouths on a leaf
- 2. vary greatly in size and shape
- 3. bundles of xylem and phloem
- 4. what happens in leaves
- 6. protect the cells inside the leaf
- 7. enters the leaf through stomata
- 8. have spaces for carbon dioxide
- 11. arrangement of the upper leaf cells
- 13. a plant's food
- 17. stomata at night
- 18. lots of them in the upper leaf cells
- 20. a gas plants have too much of