Atmosphere

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Across
  1. 3. A front where cold air moves in under a warm air mass.
  2. 5. 12 to 50 km, Ozone held here, absorbs UV radiation
  3. 10. if warm and cool air collide, the warm air will be forced up
  4. 13. a percentage of the maximum amount of water vapor the air can hold at its current temperature
  5. 15. air passing over warm surfaces gains buoyancy
  6. 18. the layer closest to Earth, where almost all weather occurs; the thinnest layer
  7. 20. a body of air with horizontally uniform temperature, humidity, and pressure.
  8. 24. the largest source of human caused pollution in the United States
  9. 25. A front where warm air moves over cold air
Down
  1. 1. weather phenomenon caused when warm water from the western Pacific Ocean flows eastward; milder winter temperatures and less snow than usual
  2. 2. the abnormal rise of the sea along a shore as a result of strong winds
  3. 4. the concentration of ozone in the stratosphere; protects Earth from harmful ultraviolet rays
  4. 6. cloud formation that occurs when warm moist air is forced to rise up the side of a mountain
  5. 7. a large, powerful windstorm that forms over warm ocean waters
  6. 8. the mass of air surrounding the Earth
  7. 9. A hurricane intensity scale that relates hurricane damage to wind speeds and central air pressures.
  8. 11. an irregularly recurring upwelling of unusually cold water to the ocean surface along the western coast of South America that often occurs following an El Niño; winter temperatures that are warmer than normal in the Southeast and cooler than normal in the Northwest
  9. 12. A boundary between air masses that don't move possibly causing rain for several days
  10. 14. a powerful funnel-shaped column of spiraling air
  11. 16. global warming caused by the buildup of carbon dioxide in the atmosphere
  12. 17. 50 to 80 km, most meteorites burn up here
  13. 19. the temperature at which the water vapor in the air becomes saturated and condensation begins
  14. 21. Used to classify a tornado based on wind speed and damage
  15. 22. the uppermost layer of the atmosphere; very thin and very hot air
  16. 23. a usually brief, heavy storm that consists of rain, strong winds, lightning, and thunder