The Atmosphere

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Across
  1. 2. the layer of the atmosphere that extends from 80km above Earth's surface
  2. 6. elevation above sea level
  3. 7. the envelope of gases held to Earth by the force of gravity
  4. 10. an instrument used to measure changes in air pressure
  5. 12. the second most abundant gas in our atmosphere
  6. 14. the effect of Earth's rotation on the direction of winds and currents
  7. 15. the lower layer of the thermosphere
  8. 16. the horizontal movement of air from an area of high pressure to an area of lower pressure
  9. 17. the "middle" layer of the atmosphere
Down
  1. 1. the lowest layer of Earth's atmosphere
  2. 3. the layer of the atmosphere that contains the ozone layer
  3. 4. an instrument used to measure wind speed
  4. 5. the pressure caused by the weight of a column of air pushing down on an area
  5. 8. the most abundant gas in our atmosphere
  6. 9. winds that blow over short distances
  7. 11. the outer layer of the atmosphere
  8. 13. winds that blow steadily fro specific directions over long distances