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BiologyBiodiversity I
Since the time of hunter-gatherers, human beings have been aware of how the wellbeing of...
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General ScienceDensity and Buoyancy
Density is a fundamental physical property of matter. This module introduces the concept of density,...
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Math in ScienceScientific Notation
The blue whale weighs approximately 190,000 kilograms, while a plankton weighs just 0.5 milligrams—a difference...
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