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Earth's climate is a complex system controlled by many factors. This Click and Learn will examine the two most important factors: solar radiation and the composition of Earth's atmosphere.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
Has Earth changed over deep time? How did Earth shape life and life shape Earth? What does Earth's climate in the distant past tell us about the future? Andrew H. Knoll of Harvard University, Naomi Oreskes of the University of California, San Diego, and Daniel P. Schrag of Harvard University guide...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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3
The disappearance of the dinosaurs at the end of the Cretaceous period posed one of the greatest, long-standing scientific mysteries. This three-act film tells the story of the extraordinary detective work that solved it. Shot on location in Italy, Spain, Texas, Colorado, and North Dakota, the film...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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4
Fossilized dung beetle balls are part of a comprehensive fossil collection project to reconstruct the habitat of Ardipithecus ramidus.
Grade Level   K 1 2 3 4 5
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