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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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BiologyTaxonomy II
Carolus Linnaeus, the “father of taxonomy,” developed a uniform system for naming plants and animals...
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ChemistryProperties of Liquids
When it comes to different liquids, some mix well while others don’t; some pour quickly...
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