The Atmosphere

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Across
  1. 3. harmful substances in the air,water,and soil
  2. 4. contains the ozone layer
  3. 6. layer of atmosphere that protects us from space rocks
  4. 7. distance above sea level
  5. 10. condition of Earth's atmosphere
  6. 11. form of oxygen with three oxygen atoms
  7. 13. phone calls and television pictures relayed back to Earth from this layer
  8. 14. mixture of gases that surround Earth
  9. 15. weight of a column of air
  10. 17. layer of atmosphere that contains the weather
  11. 18. layer of the atmosphere that extends from 80 km into outer space
  12. 19. rain that contains more acid than normal
Down
  1. 1. mass in a given volume
  2. 2. water in the form of a gas
  3. 3. force pushing on an area
  4. 5. measures air pressure with a liquid
  5. 8. tool used to measure air pressure
  6. 9. measures air pressure without a liquid
  7. 12. brown haze that develops in sunny cities
  8. 16. reflects radio waves