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Scientists and ResearchPercy Lavon Julian
The module traces the life and career of organic chemist Percy Julian, who developed a...
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Earth ScienceNatural Hazards and Risk
Tornadoes, earthquakes, tsunamis, and volcanic activity are all examples of natural hazards with the potential...
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Earth ScienceThe Phosphorus Cycle
All living organisms need phosphorous to survive and grow. This module describes forms that phosphorous...
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