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Living Bones, Strong Bones
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In this activity about engineering, nutrition, and physical activity, learners design and build a healthy bone model of a space explorer which is strong enough to withstand increasing amounts of weigh
Hanford at the Half-Life Radiation Calculator
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This quiz lets you estimate your annual radiation exposure.
Hazardous Chemicals in Your Neighborhood
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In this environmental science lesson, learners will examine hazardous chemicals and their effects on human health and the environment.