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Diffusion of Water with Gummy Bears
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In this activity, learners investigate the movement of water into and out of a polymer. Learners test the diffusion of water through gummy bears, which are made of sugar and gelatin (a polymer).

Clam Hooping
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In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.

On Target
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In this design challenge activity, learners modify a cup so it can carry a marble down a zip line and also drop it onto a target.

Colour by Numbers: Image Representation
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This activity shows learners how computers use numbers to represent pictures. A grid is used to represent the pixels (short for picture elements) of a computer screen.

A Stand-up Egg
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In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.

Fantastic Four: A Math Card Game
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This is a game that is sure to sharpen players' basic math skills. Players must use four randomly selected numbers to create an equation that equals a fifth number.

Hot Sauce Hot Spots
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In this activity, learners model hot spot island formation, orientation and progression with condiments.

Balancing Ball: Suspend a ball in a stream of air
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Balance a ball in the air with a hair dryer! This Exploratorium produced activity shows learners concepts like lift and air streams. You can try many different angles, speeds, and ball types.

See the Light
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

A Mole of Gas
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In this two-part activity, learners use everyday materials to visualize one mole of gas or 22.4 liters of gas. The first activity involves sublimating dry ice in large garbage bag.

Designer Seeds
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In this activity, learners will examine a variety of seeds, describe them, and determine how they are dispersed.

Size and Distance
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In this activity about depth perception, learners create an optical illusion in a shoe box.

Gumdrop Chains and Shrinky Necklaces
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In this activity, learners thread gumdrops together to make a model of a polymer.

Chilean Sea Bass: Off the Menu
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In this data analysis activity, learners use data collected by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) to study Chilean sea bass populations.

Don't Be Nerve-ous
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In this activity, learners discover a brain process called habituation.

Harvesting Chemicals from a Battery
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In this activity, learners take apart a used zinc-carbon dry cell battery.

Chemistry Is Colorful
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In "Chemistry is Colorful" learners explore different materials through paper chromatography.

Getting Your Bearings
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In this activity, learners explore the concept of friction and how ball bearings reduce friction.

Exploring Earth: Land Cover
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This activity models some of the ways natural processes, such as erosion and sediment pollution, affect Earth’s landscape.

Making Sense of Sensors
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In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.