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Natural Environment of the Pacific Northwest

Natural Environment of the Pacific Northwest. Rainshadow Effect. Rainshadow Effect. Agenda Go over objectives Take notes on the Rainshadow Effect Short in-class activity Finish/turn in chapter vocabulary. Rainshadow Effect. Objective: At the end of this lesson I should be able to…

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Natural Environment of the Pacific Northwest

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  1. Natural Environment of the Pacific Northwest RainshadowEffect

  2. Rainshadow Effect • Agenda • Go over objectives • Take notes on the Rainshadow Effect • Short in-class activity • Finish/turn in chapter vocabulary

  3. Rainshadow Effect • Objective: • At the end of this lesson I should be able to… • explain the 5 steps of the Rainshadow Effect. • act out the Rainshadow Effect.

  4. Rainshadow Effect • Overview • Most important climatic phenomenon in PNW • Creates two differing natural environments

  5. Rainshadow Effect • Five steps

  6. Rainshadow Effect • First step • Starts with warm ocean currents in the Pacific • Air is warm and moist • Wind blows the warm, moist air into the sides of the Olympic Mountains and the Coastal Mountains

  7. Rainshadow Effect • Second step • Warm, moist air hits the western (windward) side of the mountains • Air rises and cools • Drops moisture on the side of the mountains

  8. Rainshadow Effect • Third step • Air crests the mountains • Air descends and warms • Less moisture is dropped

  9. Rainshadow Effect • Fourth step • Air moves across the Puget Sound • Picks up more moisture

  10. Rainshadow Effect • Fifth step • Air hits the western (windward) side of the Cascades • As the air rises over the Cascades it drops moisture again • Repeats process across Eastern WA

  11. Rainshadow Effect • Results • Western (windward) slopes • More rain • Greener • More people • Eastern (leeward) slopes • Less rain • Drier • Less people

  12. Rainshadow Effect • Activity • Each row is going to get a card • The card has one of the five steps • Refer to your notes • Take five minutes to devise a short skit (less than 1 minute) • You will act these out for the class

  13. Rainshadow Effect • Tomorrow • Turn in vocab (if you have not yet) • West/East of the Cascades – co-teaching

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