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Glacier Terms

Glacier Terms. Alpine vs. Continental Glaciers. Glacier: A large mass of compacted snow and ice that moves under the force of gravity Alpine (Valley) Glaciers: A glacier that moves within valley walls Continental glacier: a glacier that covers a large part of a continent. Glacial Polish.

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Glacier Terms

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  1. Glacier Terms

  2. Alpine vs. Continental Glaciers Glacier: A large mass of compacted snow and ice that moves under the force of gravity Alpine (Valley) Glaciers: A glacier that moves within valley walls Continental glacier: a glacier that covers a large part of a continent

  3. Glacial Polish Bedrock surface smoothed by the passage of a glacier

  4. Striations Parallel scratches on the surface of a rock caused by the movement of a glacier- aligned in the same direction as ice flow (ex. if the striation runs north to south, the glacier went from north to south)

  5. Drumlins Oval-shaped mound of unsorted glacial till- The round end of the hill faces the direction that the glacier came from

  6. Moraine Irregular, hilly, unsorted deposit formed at the end of an advancing glacier when the melting ice front stays at the same position for a long time (ex. Long Island)

  7. Kettles/Kettle Lake 8. Kettle: Low spots in glacial deposits and places where large, buried ice blocks melt- leaves a hole 9. Kettle Lakes are when the holes fill in with water

  8. Erratics A large boulder dropped by ice

  9. Esker A ridge made by water deposition within a tunnel under the ice

  10. Kame Deltas deposited by the water at the edge of a glacier

  11. In Notes: Valley Shape Young riVers make V-shaped valleys Alpine glaciers make U-shaped valleys

  12. Visualizations Seasonal Migration of Snow Observe the retreat of ice sheets from North America. Observe how glaciers erode bedrock surfaces.

  13. Sorting(Your moment of Venn)

  14. Venn

  15. Videos WATCH ALL 3 VIDEOS!!! Do at least 1 note per video- total video time =10 minutes How do Glaciers Form https://www.youtube.com/watch?v=4wNOrFy17WE What is a Glacier? https://www.youtube.com/watch?v=fleXP9ljZ-o Some Review of W-E-D https://www.youtube.com/watch?v=FN6QX43QB4g

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