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Showing results 21 to 40 of 49
Phantom Phlame
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In this trick, hold your hand over a burning candle without getting burned, by reflecting and transmitting the light of two candles. This activity is best suited as a demonstration.
Make a Prism
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In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.
Bone Stress
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In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.
Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.
Reflecting Rainbows: Decorate Your White Walls With Rainbow Colors!
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Like water drops in falling rain, a CD separates white light into all the colors that make it up.
Look Into Infinity
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Learners use two mirrors to explore how images of images of images can repeat forever.
Exploring the Universe: Exoplanet Transits
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In "Exploring the Universe: Exoplanet Transits," participants simulate one of the methods scientists use to discover planets orbiting distant stars.
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.
Mirrorly a Window
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In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see.
Count Around
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Learners explore their surroundings while reasoning about categories and counting.
Exploring Materials: Graphene
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In this activity, learners investigate the properties of graphene and graphite.
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.
Physics in a Glass: Reversing Arrows
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In this simple activity, learners investigate refraction by placing a picture of an arrow behind a glass of water.
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.
Shrinking Spot
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In this activity, learners control the (apparent) size of a hole with their brain.
Soap-Film Painting
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Make a big canvas of iridescent color with pvc pipe! In this Exploratorium Science Snack, you'll need to cut and assemble some PVC pipe, but the pay-off, the soap-bubble canvas, is big.
As Light as Air
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Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.
Changing Colors
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Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result.
Exploring Materials: Thin Films
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In this activity, learners create a colorful bookmark using a super thin layer of nail polish on water. Learners discover that a thin film creates iridescent, rainbow colors.
See It to Believe It: Visual Discrimination
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In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.