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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this activity on page 8 of the PDF (Behind the Scenes with Chemistry), learners make three of Harry Potter's essential school supplies: quills, ink, and color-changing paper.

$10 - $20 per student Ages 8 - 14 1 to 7 days