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In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light.

$10 - $20 per group Ages 8 - 18 30 to 45 minutes
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

$5 - $10 per group Ages 8 - 14 1 to 4 weeks
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

free Ages 4 - adult 10 to 30 minutes
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In this activity about electricity, learners build and test a paper clip switch to turn on a light bulb.

$10 - $20 per group Ages 8 - 11 10 to 30 minutes
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In this space science activity, learners explore transits and the conditions when a transit may be seen.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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The major goal of this math lesson is to have learners collect data from a variety of experiments, determine what models best fits their data, and explain why their models are best.

Over $20 per group Ages 14 - 18 1 to 2 hours
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Align four color transparencies, each one a single color (cyan, magenta, yellow, and black), and see a beautiful full color image.

1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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Make a kite out of a garbage bag, shower curtain, painting tarp--anything light, thin, flexible and plastic!

1 cent - $1 per student Ages 6 - 14 45 to 60 minutes
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners construct a projector out of cardboard to view their favorite images (such as storybook illustrations) on the wall.

$10 - $20 per student Ages 8 - 14 1 to 2 hours
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Learners explore their surroundings while reasoning about categories and counting.

free Ages 4 - 14 5 to 10 minutes
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In this technology activity, learners light up the room with electrifying play dough creations. Learners use conductive and insulating homemade play dough to build simple circuits.

Over $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners explore how mirrors reflect light and change the way we see things.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners construct a device that projects images onto a surface, so they can trace landscapes and other sights.

$10 - $20 per student Ages 8 - 14 1 to 2 hours
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This is a web page that helps informal educators brainstorm on how to use a Pico Cricket (tiny computer) in an informal activity.

Over $20 per student Ages 8 - adult 2 to 4 hours
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Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.

$10 - $20 per student Ages 11 - 18 1 to 2 hours
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In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

free Ages 6 - adult 10 to 30 minutes
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Learners create an electrical-circuit maze out of wire, then try to pass a paperclip through the maze without touching the wire.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.

free Ages 14 - 18 5 to 10 minutes