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ChemistryChemical Bonding
The millions of different chemical compounds that make up everything on Earth are composed of...
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General ScienceTemperature
An introduction to the relationship between energy, heat and temperature. This lesson compares the 3...
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Scientists and ResearchTracking Endangered Jaguars across the Border
This module offers an in-depth profile of wildlife biologist Sergio Avila and his work to...
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