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Rotating Light
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In this activity, learners explore what happens when polarized white light passes through a sugar solution.
Cool Hot Rod
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If you have access to a copper metal tube, this activity does a great job demonstrating what happens to matter when it's heated or cooled. This activity requires some lab equipment.
Chemical Change
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In this chemistry activity, learners explore the amount of copper in a new penny. Learners use toilet bowl cleaner to hollow out the interior of a penny with zinc inside.
Stripped-down Motor
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In this activity, you'll make an electric motor--a simple version of the electric motors found in toys, tools, and appliances everywhere.
Motor Effect
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In this activity about electricity and magnetism, learners examine what happens when a magnet exerts a force on a current-carrying wire.
Bird in the Cage
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.
Size and Distance
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In this activity about depth perception, learners create an optical illusion in a shoe box.
Inverted Foucault Pendulum
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In this demonstration, learners explore a variation of a Foucault pendulum, but upside down.
Rutherford Roller
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In this activity, learners make a black box device that serves as an excellent analogy to Rutherford's famous experiment in which he deduced the existence of the atomic nucleus.
Gray Step
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In this activity, learners discover that it's difficult to distinguish between two different shades of gray when they aren't separated by a boundary.
Indicating Electrolysis
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Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
Cold Metal
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In this activity, learners discover that our hands are not reliable thermometers.
Mold Mole Molds
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In this activity, learners make different shapes that hold exactly one mole of gas (air).
Gieant Sieve Sorter
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This Exploratorium activity explores size and scale. Through four levels of screen sizes, learners can sort out objects of different sizes.
Charge and Carry
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In this activity about electricity, learners produce a spark that they can feel, see, and hear. Learners rub a Styrofoam plate with wool to give it an electric charge.
Portable Potable Pressure
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In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.
Puzzled Partners
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In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.
Rubber Band newton Scale
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In this activity, learners make a simple spring-like scale using a rubber band instead of a spring, and calibrate the scale in newtons (N).
Downhill Race
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In this activity, learners explore how two cylinders that look the same may roll down a ramp at different rates.
Blue Sky
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In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.