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In this activity, learners discover a brain process called habituation.

free Ages 6 - 18 10 to 30 minutes
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In this activity, learners discover how hard their hearts work to pump blood.

free Ages 4 - 14 Under 5 minutes
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In this activity, learners discover how sweating makes us feel cooler. Learners put on one damp sock and one dry sock and sit in front of a fan.

free Ages 4 - 14 5 to 10 minutes