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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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BiologyEcosystem Services
This module explores the role ecosystems provide in supplying humans with a wealth of life-supporting...
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Process of ScienceThe Practice of Science
Scientists use multiple methods to investigate the natural world and these interconnect and overlap, often...
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