Topic 1 Glaciers & Deserts

SHOWME Tutorials:

http://www.showme.com/sh/?h=vjWQDb6

http://www.showme.com/sh/?h=NNGw4n2

Review Questions

  1. What is a “desert”?  How is it defined, technically?
  2. Where on the planet (under what 4 conditions) in general may deserts occur?
  3. Why is chemical weathering less in deserts than in humid climates?
  4. What is the primary erosional force in deserts?
  5. What are the two ways in which wind can transport sediment – name & describe?
  6. What is cross-bedding and how does it form?
  7. What four factors affect the size and shape of sand dunes?  How?
  8. What is the relationship between plateaus, mesas, buttes and spires/monuments?
  9. How do glaciers form?
  10. What two factors affect whether a glacier advances, is stationary, or retreats?
  11. How does “glaciation” move sediment?
  12. What features differentiate a glaciated mountain valley vs. one that is not glaciated?
  13. What is stratified glacial drift and how is it different from glacial till?
  14. Do we currently live in an “ice age”?  Explain.

Topic 2 Oceans

Ocean Ecology and Conservation :  https://www.theguardian.com/personal-investments/ng-interactive/2018/mar/27/documentarian-fabien-cousteau-is-pointing-the-way-to-healthier-oceans?CMP=Share_AndroidApp_Gmail

http://www.showme.com/sh/?h=7nGIjoW

http://www.showme.com/sh/?h=S1JvsWW

http://www.showme.com/sh/?h=gelXdGS

http://www.showme.com/sh/?h=0spAlwO

Oceans Review Questions

  1. What is a submarine canyon and how is it initially formed, and maintained?
  2. What are the 3 major types of currents present in the ocean?  (Please identify them and describe how they work.)