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Article
Khan Academy

Khan Academy: Energy Through Time

For Students 9th - 10th
The quest for energy has always been a balancing act. As humans have gained greater control over their environment, they've found abundant resources - and faced numerous challenges. This article traces the history of our quest for energy.
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Handout
American Museum of Natural History

American Museum of Natural History: The Horse

For Students 9th - 10th
This resource presents illustrated essays about horses, developed in conjunction with museum-mounted exhibition, cover a wide range of topics, including the evolution of horses, the domestication of horses, the nature of horses, and the...