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Published on Jan 11, 2008
Continental Drift and Plate Tectonics explores the inner earth and its surface. The 1906 San Francisco earthquake and the Mount St. Helen's volcanic eruption are explained and illustrated through narration and spectacular historical footage. The program also explores the theory of continental drift as well as that of magnetic north and many other phenomena. 18 minutes, color. Direct Link to Purchase DVD: http://phoenixlearninggroup.com/produ... http://phoenixlearninggroup.com