UNIT 4A VOCAB

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Across
  1. 5. parts move down.
  2. 7. jet stream is a fast-flowing, river of air found in the atmosphere at around 12 km above the surface of the Earth just under the tropopause
  3. 8. A low-pressure system is a whirling mass of warm, moist
  4. 9. the movement in a gas or a liquid in which the warmer parts move up and the
  5. 10. winds.
  6. 11. are worldwide.
Down
  1. 1. a whirling of cool, dry air that generally brings fair weather and
  2. 2. It is the mix of events that happens each day in our atmosphere.
  3. 3. the movement of air over Earth’s surface in patterns
  4. 4. the front edge of a moving mass of warm air.
  5. 5. the edge of a moving mass of cold air.
  6. 6. that generally brings stormy weather with strong winds.
  7. 9. is the average weather in a place over many years.