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Earth ScienceThe Carbon Cycle
Carbon, the fourth most abundant element in the universe, moves between the atmosphere, oceans, biosphere,...
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BiologyPaleontology and the Fossil Record
Paleontologists study fossils to understand ancient organisms. While fossils might look simple enough, they provide...
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PhysicsLaws of Motion
In this module, you’ll explore how Newton developed his laws of motion and how those...
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