Atmosphere

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Across
  1. 5. Clouds associated with thunder and rain
  2. 7. The amount of water vapor in the air
  3. 8. Bottom layer of the atmosphere
  4. 10. Water vapor condenses to form _________
  5. 15. The most abundant gas in Earth's atmosphere
  6. 17. The part of the atmosphere that radio waves are bounced off and reflected back to earth
  7. 19. Coldest layer of the atmosphere; also protects earth from meteriods
  8. 20. The gas removed from the atmosphere through photosynthesis
  9. 21. Layer of gases that surround the earth
Down
  1. 1. Belts of radiation
  2. 2. Fluffy clouds composed mainly of water droplets
  3. 3. The process by which water moves through the atmosphere
  4. 4. High level "whispy" clouds composed of ice crystals
  5. 6. Layer of the atmosphere where the Ozone layer is found
  6. 9. Atmospheric pressures decreases with ________ altitude
  7. 11. 4th layer of the atmosphere; also called the "Heat Sphere"
  8. 12. Absorbs solar radiation and releases it as heat to protect earth from UV rays
  9. 13. Top layer of the atmosphere
  10. 14. The temperature where water begins to form on surfaces
  11. 16. The gas released into the atmosphere through photosynthesis
  12. 18. Low-level blanket-like clouds