Astronomy 101 Chapter 10 Crossword

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Across
  1. 7. These beautiful lights occur mostly near the north pole
  2. 10. Greenhouse gas emitted by cows
  3. 11. Lowest layer of atmosphere
  4. 12. Gases that are good at absorbing infrared radiation
  5. 15. Layer of atmosphere where molecules can escape into space
  6. 16. Greenhouse gas
  7. 18. Frozen CO2
  8. 19. Causing global average temperature to rise
  9. 20. Day to day temperature, pressure, clouds, etc.
  10. 21. Unit of atmospheric pressure
Down
  1. 1. Part of the thermosphere that contains ionized gas
  2. 2. Greenhouse gas
  3. 3. Protective bubble surrounding Earth
  4. 4. When this happens, CO2 level build up and the planet warms
  5. 5. Between the stratosphere and exosphere
  6. 6. Heated by UV light
  7. 8. Happened to the atmosphere of Venus
  8. 9. Layer of gas surrounding a planet
  9. 13. A method by which a planet gains atmosphere
  10. 14. Long term trends in weather
  11. 17. Charged particle belts encircling Earth