Atmosphere

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