Video Details

Geology of North America: Ice sheet

Grade Levels: 3 - 12
Length: 00:00:09
Website: http://www.uen.org/emedia
Usage rights: Download and retain personal copies in perpetuity.

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From time to time, throughout North American history, a large portion of the continent has been covered with massive sheets of ice called glaciers. The ice sheet pictured here covered all of Canada and extended as far south as Iowa and Illinois.

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