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Published in 2013
What did Earth's continents and oceans look like 250 million years ago, or even 1 billion years ago? What do we know about the climate back when our planet formed? EarthViewer is like a time machine for exploring Earth's deep history. Based on the latest scientific research, it lets you scroll...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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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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