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BiologyCharles Darwin II
The second in a series discussing the work of Charles Darwin, this module takes a...
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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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ChemistryStates of Matter
There are many states of matter beyond solids, liquids, and gases, including plasmas, condensates, superfluids,...
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