Atmosphere Tic-Tac-Toe

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Across
  1. 3. the bottom layer, weather happens here
  2. 5. comes from trees
  3. 6. 21% of our atmosphere
  4. 9. 4th layer, hottest layer
  5. 11. also known as CFCs
  6. 14. 2nd layer, ozone found here
  7. 15. 3rd layer, meteors burn up
Down
  1. 1. a layer of gases that surround the earth
  2. 2. boundary between stratosphere and mesosphere
  3. 4. boundary between troposphere and stratosphere
  4. 7. 78% of our atmosphere
  5. 8. boundary between mesosphere and thermosphere
  6. 10. also known as o3
  7. 12. lights in the sky occurring at thermosphere
  8. 13. the weight of the air above