WEATHER

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Across
  1. 3. a small storm often accompanied by heavy precipitation, thunder, and lightning.
  2. 6. the movement of water between the atmosphere and Earth's surface
  3. 9. the process in which liquid water changes to a gas
  4. 11. the temperature in which condensation begins
  5. 12. humidity the amount of water vapor that is in the air compared to the maximum water that the air can hold
  6. 14. scientists who study the causes of weather and try to predict it
  7. 15. high pressure centers of dry air
  8. 17. front a warm air mass overtakes a slow-moving cold air mass, clouds and precipitation occur.
  9. 19. the process in which water vapor (gas) changes into a liquid
  10. 20. lines on the weather map that joins places that have the same temperature
  11. 23. a dome of water that sweeps across the coast where hurricanes land
  12. 25. tropical cyclones that form over warm ocean water
Down
  1. 1. violent disturbances in the atmosphere
  2. 2. water that falls to Earth as rain, snow, sleet, or hail.
  3. 4. a whirling center of low air pressure
  4. 5. a fast moving cold air mass overtakes a cold air mass
  5. 7. a body of air that has similar temperatures, humidity, and air pressure
  6. 8. a gas
  7. 10. the boundary where air masses meet
  8. 13. air masses that from over land; dry
  9. 16. the amount of water vapor in the air
  10. 18. an instrument used to measure relative humidity
  11. 21. a sudden spark or electric discharge between parts of clouds or between a cloud and the ground
  12. 22. a rapidly whirling funnel-shaped cloud that reaches down from a storm cloud to touch Earths surface
  13. 24. water that runs over Earths surface to the ocean