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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.
Splitting White Light
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In this optics activity, learners split white light into all its component colors using three household items: a compact disc, dishwashing liquid, and a hose (outside).
Pop Rockets
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Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.
Water Exploration Station
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In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water.
Garden Poles
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In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.
COSI's Bubble Recipe
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Everybody loves bubbles, and this is the best bubble recipe ever!
Stomp Rocket
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In this activity, learners build rockets and shoot them into the air by stomping on the plastic bottle launchers.
Pop! Rocket Launcher
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In this activity, learners construct a simple air pressure launcher for paper rockets.
Launch Altitude Tracker
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In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.
DIY Weather Vane
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In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.
Night Eyes
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In this outdoor, night-time activity, learners discover how to spot eye-shine (reflection of light from an animal's eyes) by using a flashlight to play a simulation game.
Can Energy be Created or Destroyed?
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.
Personal Pinhole Theater
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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!
Glowing Tonic
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In this sunny day activity, learners compare how a cup of water and a cup of tonic water reflect or refract light in the sun.
Pollution Patrol
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.
Heart of the Matter
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In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.
Control a Bird’s Flight
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.
How does the Atmosphere keep the Earth Warmer?
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In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.
PVC Water Squirter
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In this activity, learners build a water squirter using a PVC pipe, dowel, and foam. This activity is great for the summer time and introduces learners to forces and water pressure.
Rocket Wind Tunnel
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In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.