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In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

1 cent - $1 per group Ages 8 - 18 1 to 2 hours
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Design and create an optical illusion toy that makes two pictures appear to become one. This is called a thaumatrope and will allow the learner to investigate the phenomenon of persistence of vision.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners make a Benham Top to explore visual illusions and optics.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes