1
An early continental drift model proposed that mantle convection can produce continental movement and new plate formation.
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2
The breakup of a supercontinent into several smaller continents explains the distribution of fossil and geologic evidence.
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3
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...
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4
Reconstructing past continental plate movements reveals the island of Spitsbergen was tropical 500 million years ago.
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5
Today, oxygen, or O2, makes up about 21% of Earth's atmosphere, but for most of our planet's long history, O2 levels in the atmosphere and dissolved in the ocean were much less than they are today. In this Click and Learn, you will learn the complex biological and geological factors that have...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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