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Earth ScienceThe Hydrologic Cycle
Powered by the sun, water constantly cycles through the Earth and its atmosphere. This module...
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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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Process of ScienceTheories, Hypotheses, and Laws
Theories are not based on one scientist's work but on an accumulation of evidence and...
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