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Giant Lens
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In this activity about light and refraction, learners discover how a lens creates an image that hangs in midair.
Benham's Disk
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In this activity, learners make a Benham Top to explore visual illusions and optics.
Our Sense of Sight: How We Perceive Movement, Depth and Illusions
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In this activity, learners investigate visual perception as well as plan and conduct their own experiments.