Across
- 4. The young plant that develops from the zygote is called the __________. (page 276)
- 6. A tree's age can be determined by counting its annual ________. (page 281)
- 8. The process by which water evaporates from a plant's leaves is called ________. (page 280)
- 10. ___________ are structures that contain a young plant inside a protective covering. (page 276)
- 12. The part of a plant that captures the sun's energy. (page 278)
Down
- 1. The early growth stage of plants is called __________. (page 278)
- 2. Both grass seeds and spiny parsley seeds can hitch a ride on a dog's __________. (page 277)
- 3. After scientists found some 10,000-year-old seeds in the Arctic, they were still able to _________. (page 276)
- 5. The outer covering of the seed is called the seed ________. (page 276)
- 7. Coconut palm seeds are transported by ________. (page 277)
- 9. The underside of a leaf has openings called _________. (page 278)
- 11. The _________ of a plant holds up the leaves so they are exposed to the sun. (page 280)