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ChemistryChemical Reactions II
This module explores the study of reaction rates and the variables that can speed them...
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Scientists and ResearchBernardo Houssay
Dr. Bernardo Houssay was a pioneering researcher of the endocrine system, the system of glands...
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General ScienceThe Metric System
The metric system is the standard system of measurement in science. This module describes the...
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