super lame sience word cross

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Across
  1. 4. the inside of the nose
  2. 5. section of the heart
  3. 7. the exchange of carbon dioxide with oxygen (in lungs)
  4. 10. the storage room for water in a plant cell
  5. 12. make an exchange in the lungs
  6. 15. the wall that separates the right side of the heart with the left side
Down
  1. 1. the exchange of oxygen and carbon dioxide (in the body)
  2. 2. blood vessels that take blood away from the heart
  3. 3. looked at a cork under a microscope and saw cells
  4. 6. the wind pipe
  5. 8. the thing that lets us speak
  6. 9. what the heart is made of
  7. 11. pumps blood
  8. 13. have alveoli and bronchi inside
  9. 14. blood vessels that take blood to the heart