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In this activity related to nanotechnology, learners observe some of the effects that result from creating a thin layer of material several nanometers thick.

$5 - $10 per group Ages 11 - 14 10 to 30 minutes
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In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

$5 - $10 per student Ages 8 - 18 45 to 60 minutes
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Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result.

$5 - $10 per group Ages 4 - 14 5 to 10 minutes
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In this activity, learners construct a device that allows them to look over ledges or around corners.

$5 - $10 per student Ages 6 - 11 45 to 60 minutes
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Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

$5 - $10 per student Ages 4 - 8 10 to 30 minutes
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In this optics activity, learners build a spy tool to secretly view things over walls or around corners.

$5 - $10 per student Ages 6 - 11 10 to 30 minutes