Regents Earth Science – WWW Lab – Glaciers

 

Created by Cheryl Dodes (Port Washington H.S.)

 

Directions:  Go online to the website 

http://www.bedford.k12.ny.us/flhs/science/drewp/lessons/glaciers.ppt

where you will find a slide show on glaciers. 

An additional website to check is http://www.kathimitchell.com/glaciers.htm 

 

As you view the slide shows, take notes so you can answer the questions below:

 

    1.  What are glaciers and why do they form?

    2.  How and why do glaciers move?

3. What is a crevasse and why do crevasses form?
4. There are seven types of glaciers, but only two types concern us – continental ice sheets and valley glaciers.   Define each of these two types.
5. How is a valley carved by a glacier different from a valley carved by a river of water?
6. How does a continental glacier system change the land?
7. What are three types of deposits characteristically left by continental glaciers?
8. What is a moraine? 
9. Name and describe five land features created by glaciers. 
10. What is an ice age?  When did the last series of ice ages occur in North America?
11. More lakes in North America have been formed by glaciers than by anything else.  Find examples of lakes in North America that owe their existence to the series of glaciers that once covered North America?