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See the Light
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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.
Periscope
Source Institutions
In this activity, learners construct a device that allows them to look over ledges or around corners.
Periscope
Source Institutions
In this optics activity, learners build a spy tool to secretly view things over walls or around corners.