pp.206-207
What happens when an area is so cold that the snow does not all melt?
What is a glacier?
What causes the glacier to move downhill?
What are some ways a glacier changes the earth’s surface?
Describe a polished rock
How does a glacier cause scratches?
How does a real glacier change a valley?
pp. .208 -209
In what ways does gravity affect erosion?
In what ways does gravity affect erosion?
Does erosion always happen slowly?
What kinds of erosion can happen suddenly
What is a landslide?
How does gravity affect a landslide?
What can cause an avalanche?
When does an avalanche occur?
What can cause an avalanche?
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