Prehistoric Disasters Worksheet

Prehistoric Disasters Worksheet Movie Summary: Since the Earth's creation 4.5 billion years ago, the planet has been struck by a series of catastrophes, each one pushing life to the edge of extinction. But from disaster comes new life - and while the dominant species on the planet were... (more details for Prehistoric Disasters*)

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Snowball Earth File #2127 Info: Created by Jay M Towsend on June 08, 2012 using Maryland State standards for students at a grade 9-10 level.