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Showing results 1 to 11 of 11
See the Light
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.
Observing Insects at Night
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In this activity, learners set up a night time insect observation station with a light and sheet.
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.
Exploring Structures: Butterfly
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In this activity, learners investigate how some butterfly wings get their color.
Seeing in the Dark
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In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
Exploring Ultraviolet (UV) light from the Sun
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In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.
Color Table: Color your perception
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Look at pictures through different color filters and you'll see them in a new way. People have used color filters in beautiful photography or sending secret messages.
Circles or Ovals?
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This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?
Color Contrast
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Do you have a hard time matching paint swatches with your furniture? When you consider human perception, color is context dependent.
Safer with Science-Masks
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Why should we wear masks? Do masks work? Do some masks work better than others? Learners find out in this activity.
Rainbow Film
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In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.