WEATHER UNIT

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Across
  1. 4. direction The direction from which the wind is blowing.
  2. 7. The study of the atmosphere.
  3. 8. Instrument designed to measure the speed of the wind.
  4. 10. The state of the atmosphere, usually short term, with respect to its effects upon life, property and human activities
  5. 12. Pressure The pressure exerted by the air as a result of gravity. It is measured by the barometer, and expressed in millibars or inches of mercury.
Down
  1. 1. A measure of the water vapor in the air.
  2. 2. No precipitation and no extreme conditions of clouds, visibility or wind
  3. 3. The weather conditions over a specified period of time
  4. 5. A period of moisture deficiency of dryness in a region.
  5. 6. In meteorology, usually refers to storms with considerable cloud and precipitation areas.
  6. 9. The visible minute water droplets and/or ice particles in the atmosphere above the earth’s surface
  7. 11. mass A mass of air over a particular region of the earth's surface