How the Surface on Earth Changes

CS
by Cynthia Skow0 views·Updated Apr 14, 2021
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  1. Welcome class.
  2. Today we continue our lesson on how earth's surface can
  3. change. Yesterday we saw a video on how wind can
  4. bring change to earth's surface.
  5. Today we will explore waters effect.
  6. We've learned that change can happen suddenly life with an
  7. earthquake and sometimes it is slow and takes years to
  8. see the effects.
  9. Today, I want you to think about if you can
  10. stop change or slow it down.
  11. Have we all heard of the Grand Canyon?
  12. The Grand Canyon is a famous example of how wind
  13. and water over a very long time can change birth
  14. surface. The Grand Canyon has been changing for the past
  15. 5-6 million years because of the Colorado River.
  16. Here are some more examples of different types of erosion.
  17. You have wind erosion, glacier erosion and water erosion.
  18. So today we are going to be covering standards E.
  19. S. S.
  20. Two yeah processes that shaped the earth and your objective
  21. in. I can compare multiple solutions designed to slow or
  22. prevent wind or water from changing the shape of the
  23. land. Mhm.
  24. So today I'm going to demonstrate erosion using water and
  25. sand. Then it will be your task to build a
  26. land set up or to rain and see if you
  27. can stop water from changing it.
  28. First step is to watch my erosion demonstration.
  29. Yeah. Mm.
  30. Here are your materials that you will need after.
  31. I would like you to journal and write down three
  32. observations you made drawing your before and your after pictures
  33. and some of vocabulary.
  34. Oh, okay.
  35. Okay. Okay.
  36. Yeah. And I'm not sure why I can't play my
  37. video.