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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 activity, learners conduct a simple test to find their blind spot.

1 cent - $1 per student Ages 8 - 14 Under 5 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 related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes