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Showing results 1 to 17 of 17
Mix-N-Match Light
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This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.
Color Vision
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In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light.
Changing Colors
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In this activity, learners will explore how different colors of lights interact with objects around them. Will a blue object stay blue with a red filter?
Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.
Nebula in a Jar
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In this activity, learners will build a model of a nebula using cotton balls and colored water. Astronomers photograph nebulas and add colors to provide information about the nebula's composition.
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.
DIY Sunprints
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In this activity, learners will see how UV light affects colors over time by making their own sunprint on construction paper.
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.
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.
Constellation Detective
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In this quick activity, learners practice locating a constellation in a map of very dark skies.
Observing the Moon
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Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.
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.
Erupting Fizz
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This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.
Exploring Materials: Nano Gold
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In this activity, learners discover that nanoparticles of gold can appear red, orange or even blue. They learn that a material can act differently when it’s nanometer-sized.