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In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners estimate risks associated with different events and compare their estimates to the real possibilities.

1 cent - $1 per group Ages 11 - 14 45 to 60 minutes
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In this lab (Activity #1 on page), learners explore how we see color.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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In this activity about light and perception, learners create and observe moire patterns.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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This mirror-tracing activity related to proprioception is a visual and motor test that involves learning a new motor skill.

1 cent - $1 per student Ages 11 - 18 1 to 7 days
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In this activity, learners use a simple trick of perspective to dress friends in tiny cutout clothing. Learners make tiny pants out of card stock and tape them to the end of a stick.

1 cent - $1 per group Ages 6 - 18 5 to 10 minutes
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In this artistic activity, learners blow up a smaller picture into a larger one, by using a grid.

1 cent - $1 per group Ages 6 - 11 30 to 45 minutes