weather

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Across
  1. 4. a device for collecting and measuring the amount of rain which falls
  2. 7. the life-supporting component of the air.
  3. 8. unreactive gas that forms about 78 percent of the earth's atmosphere
  4. 10. the process of turning vapor into liquid
  5. 11. leading edge of a cold air mass that is advancing and replacing a warmer air mass
  6. 13. the amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature.
  7. 14. an instrument measuring atmospheric pressure
  8. 15. an instrument for measuring the speed of the wind,
  9. 16. a body of air with horizontally uniform temperature, humidity, and pressure.
Down
  1. 1. is a weather instrument that indicates wind direction
  2. 2. the process of turning from liquid into vapor.
  3. 3. the atmospheric temperature
  4. 5. an instrument for measuring the humidity of the air or a gas.
  5. 6. the leading edge where a warm air mass moves in and replaces a cooler air mass
  6. 9. natural movement of the air
  7. 12. an instrument for measuring and indicating temperature