How a Tree Grows

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Across
  1. 4. Gas produced when a tree makes its food
  2. 6. Release of water from a tree's leaves
  3. 7. Count these to tell a tree's age
  4. 8. Vessels that carry food from leaves to other tree parts
  5. 9. Xylem that is no longer active
  6. 10. Energy source for photosynthesis
  7. 12. Tiny tubes that absorb water are root ___.
  8. 14. A tool used to take a sample to determine age of a tree is an increment ___.
  9. 15. Vessels that carry water up from a tree's roots
Down
  1. 1. How a tree makes its food
  2. 2. Type of food a tree makes in its leaves
  3. 3. A gas used to make a tree's food is ___ dioxide.
  4. 5. Cell layer that makes new wood
  5. 11. It gives leaves their green color
  6. 13. Where food is made in a tree