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Polarized Light
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In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.
Three Circles of Pigments
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In this activity, learners overlap the three primary colors to see how all other colors are made.
Views From Windows
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In this activity, learners use their imaginations and picture a scene in their heads.
Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.