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Chemical Breath
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This is a chemistry lab activity about solutions (page 7 of the PDF). Learners see firsthand how chemicals in a solution can combine to form an entirely different substance.
Build a Lung
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Most of the time, we don't have to think about breathing. In fact, you're probably breathing right now without thinking about it!
Lungometer
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In this environmental health activity, learners investigate their own vital lung capacities.