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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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ChemistryKinetic-Molecular Theory
Over four hundred years, scientists including Rudolf Clausius and James Clerk Maxwell developed the kinetic-molecular...
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ChemistryChemical Reactions
This modules explores the variety of chemical reactions by grouping them into general types. We...
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