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Scientists and ResearchCarlos J. Finlay
The successful construction of the Panama Canal relied as much on a medical breakthrough as...
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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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ChemistryThe Periodic Table of Elements I
The modern periodic table is based on Dmitri Mendeleev’s 1896 observations that chemical elements can...
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