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Tops

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In this activity, learners discover that some things only stand up while they are spinning.
$1 - $5 per student Ages 8 - 14 1 to 2 hours

Stereoscope

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In this activity, learners construct a device that allows them to view 2-D images in 3-D.
Over $20 per student Ages 6 - 11 1 to 2 hours