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5th Grade Ch 8 Lesson 2 What Are Air Masses

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5th Grade Ch 8 Lesson 2 What Are Air Masses

  1. 1. Lesson 2 What are air masses?
  2. 2. kinds of air masses <ul><li>air mass = large body of air w/ similar prop. through it </li></ul>
  3. 3. 4 kinds of air masses Continental tropical Continental polar Maritime tropical Maritime polar
  4. 4. Continental tropical forms over Land warm dry
  5. 5. Continental polar Forms over Land Cold dry
  6. 6. Mar itime tropical Forms over water warm Humid (moist)
  7. 7. Mar itime polar Forms over Water Cold Humid (moist)
  8. 9. Air mass <ul><li>Form when air stays over an area for some time </li></ul><ul><li>Take on temp. & water vapor of that area </li></ul><ul><li>Move by upper level winds </li></ul>
  9. 10. What kind of air mass would form here? What characteristics would an air mass that formed here have?
  10. 11. What characteristics would an air mass that formed here have? What kind of air mass would form here?
  11. 12. front <ul><li>boundary between 2 air masses </li></ul><ul><li>named from kind of air that moves into area </li></ul>
  12. 13. stationary front <ul><li>does not move very much or moves back & forth </li></ul>

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