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In this activity, learners examine fingerprints. Learners leave a hidden print on a surface and then make their own print detecting powder from graphite (found in pencils).

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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This is a series of demonstrations about different electrical and magnetic phenomena.

Over $20 per group Ages 11 - 18 45 to 60 minutes