Chapter 12 Weather

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Across
  1. 4. a violent disturbance in the atmosphere.
  2. 8. any form of water that falls from clouds and reaches Earth's surface.
  3. 9. Air masses that are cut off
  4. 12. An open-ended tube that collects rain
  5. 13. a huge body of air in the lower atmosphere that has similar temperature, humidity, and air pressure at any given height.
  6. 17. A swirling center of low air pressure
  7. 18. Relative humidity is the percentage of water vapor that is actually in the air compared to the maximum amount of water vapor the air can hold at a particular temperature.
  8. 19. is a sudden spark or electrical discharge that jump between parts of a cloud, or nearby clouds, or between the cloud and the ground
  9. 21. Wispy,feathery clouds
  10. 26. that form in flat layers
  11. 27. process by which water vapor becomes liquid water
  12. 28. to leave behind or leave temporarily.
  13. 31. a rapidly whirling, funnel-shaped cloud that reaches down from a thunderstorm to touch Earth's surface.
  14. 32. The movement of water through Earth's systems, powered by the sun's energy
  15. 33. A long period of scarce rainfall or dry weather
  16. 34. scientists who study and try to predict weather.
Down
  1. 1. Lines joining places on the map that have the same air pressure
  2. 2. has two thermometers, a wet-bulb thermometer and a dry-bulb thermometer.
  3. 3. The boundary where the air masses meet
  4. 5. warm air masses form in the tropics and have low air pressure.
  5. 6. an overflowing of water in a normally dry area.
  6. 7. a tropical cyclone with winds of 119km or higher.
  7. 10. process by which molecules of liquid water escape into the air after becoming water vapor
  8. 11. a high-pressure centers of dry air.
  9. 14. a measure of the amount of water vapor in the air.
  10. 15. a "dome" of water that sweeps across the coast where the hurricane lands.
  11. 16. bands of high-speed winds about 10 km above Earth's surface.
  12. 20. cold air masses from north of 50 degrees north latitude and south of 50 degrees south latitude.
  13. 22. lines joining places that have the same temperature
  14. 23. that look like cotton
  15. 24. a small storm often accompanied by heavy precipitation and frequent thunder and lightning.
  16. 25. The temperature at which condensation begins
  17. 29. air masses form over oceans.
  18. 30. air masses form over land.