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Earth ScienceThe Silicate Minerals
Understanding the structure of silicate minerals makes it possible to identify 95% of the rocks...
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ChemistryAtomic Theory I
The 19th and early 20th centuries saw great advances in our understanding of the atom....
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ChemistryThe Periodic Table of Elements II
This module traces the history of the periodic table of the elements. In the mid-1800s,...
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