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In this activity, learners build a miniature wind tunnel to measure force. Learners construct the model out of Lexan plastic, a fan, and a precise digital scale.

Over $20 per group Ages 11 - adult 2 to 4 hours
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Learners build a simple one-cell battery and use an ammeter to measure the flow of current.

$10 - $20 per group Ages 11 - adult Under 5 minutes