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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.

How to Make an Audio Tape Bow
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From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

Family Fort Challenge
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In this activity, learners will explore engineering concepts to construct a blanket fort using materials sourced from home.

Home Water Audit
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This activity offers learners and their families several ways to raise their awareness together about home water.

Musical Gloves
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Put on a pair of gloves and be the conductor of your invisible orchestra!

Balls and Ramps
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In this activity, learners use simple, everyday materials to experiment with balls and ramps.

Build A Bee Bath
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In this activity, learners use found natural materials to create a water haven for bees and other insects.

How Greenhouse Gases Absorb Heat
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Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

Balloon Staging
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In this activity, learners simulate a multistage rocket launch using party balloons, fishing line, straws, and a plastic cup.

Lotus Leaf Effect
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This is a demonstration about how nature inspires nanotechnology. It is easily adapted into a hands-on activity for an individual or groups.

Binary Challenge
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In this activity, learners cut out 5 paper cards and label them with 1, 2, 4, 8, or 16 dot(s) to explore binary digits.

How the Rubber Meets the Road
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In this activity, learners explore how engineers design tire treads to increase safety and reliability.

Magic Sand: Nanosurfaces
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This is an activity/demo in which learners are exposed to the difference bewteen hydrophobic surfaces (water repelling) and hydrophilic surfaces (water loving).

Homemade Rube Goldberg Machine
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In this fun and, at times, hilarious force and motion activity, learners will use household objects to build a crazy contraption and see how far they can get a tennis ball to move.

Carbon Configurations
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In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms.

Programming Languages: Marching Orders
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In this activity about computer programming, learners follow instructions in a variety of ways in order to successfully draw figures.

Rocket Science
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Learners create a small explosion by collecting hydrogen and oxygen gas together and squeezing them into a flame.

Cable Car
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In this activity, learners string a line across the room and build cable cars that can move from on end to the other.

Bouncing Yo-Yo
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In this activity, learners build unique yo-yos, which spin round and round without moving up and down.

Starch Breakdown
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Learners use Benedict’s solution and heat to test for the presence of simple sugars in glucose, sucrose, starch, and starch combined with amylase.