Layers of the Atmosphere

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Across
  1. 8. Where satellites roam
  2. 9. This layer prevents meteors from hitting Earth
  3. 10. The layer that contains the ozone
  4. 11. The layer where weather occurs
  5. 14. The hottest layer
  6. 15. one of several gases that makes up 0.1% of the atmosphere
Down
  1. 1. Where the Northern Lights occur
  2. 2. The layer of gases surrounding Earth
  3. 3. the atmosphere is divided into layers based on
  4. 4. The most abundant gas in the atmosphere
  5. 5. pulls most of the mass of the atmosphere towards the surface of the earth
  6. 6. As altitude ___. air pressure increases
  7. 7. As altitude ___, air pressure decreases
  8. 8. layer with very thin air that fades into space
  9. 12. 21% of the atmosphere
  10. 13. A form of oxygen, blocks harmful radiation