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ChemistrySubstances
This module explores substances through hypothetical and real-world examples. Substances are broadly classified as pure...
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Earth ScienceDeep Time
Have you ever wondered: Just how old is Earth? If so, you’re in good company....
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Scientists and ResearchCollaborative Research in the Arctic Towards Understanding Climate Change
Biological oceanographer Kevin Arrigo investigates questions about changes in polar ecosystems due to a changing...
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