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Pringles Pinhole Camera
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An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.
Light Maze
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In this activity, learners will explore light with reflective surfaces. Learners will make predictions and share their observations as they experiment with directing a beam of light.
Interference in a Ripple Tank
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In this optics activity, learners explore interference by adding wax blocks to a ripple tank.
Liquid Crystals Interact with Light!
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In this two-part activity, learners explore the properties of liquid crystals, which are responsible for why mood rings change color.
Sensory Hi-Lo Hunt
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In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.
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.
Multiple Reflections
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In this activity, learners explore how mirrors reflect light and change the way we see things.
Underwater Hide and Seek
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.
Paper Lanterns
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In this activity, learners explore light and shadows by creating a lantern they can keep on their nightstand.
Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.
Make a Green Gumball Black
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In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!
Measure the Sun's Size
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In this activity, learners make their own pinhole viewer in order to measure the size of the sun.
Pictures From Light
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Did you know that using a lens one can bend light to make pictures of the world? It's true!
Shimmering Lenses
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In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.
Gelatin Optic Fibers
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In this activity, learners make optical fibers out of strips of gelatin.
Bubble Suspension
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In this activity, learners observe as soap bubbles float on a cushion of carbon dioxide gas. Learners blow bubbles into an aquarium filled with a slab of dry ice.
On the Fringe (formerly Bridge Light)
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In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.
Turbidity
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This is an activity about turbidity, or the amount of sediment suspended in water.
Triboluminescence
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In this activity, learners discover what happens when they crush wintergreen-flavored candies in a very dark room.
X-Ray Spectra
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In this activity, learners use simple materials to simulate the effect of X-rays in a safe way. Learners place a piece of window screen over a box and a cardboard pattern on top of the screen.