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Pinhole Viewer
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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.
See the World Through Color-Filtering Lenses
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In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.
Illuminating Luminescence
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In this activity, learners compare and contrast different forms of luminescence by observing how chemiluminescence, phosphorescence, and fluorescence produce or emit light.