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In this activity about electricity, learners explore what happens when you blow a fuse. Learners short-circuit a battery using copper wire (a good conductor with very low resistance) and thin iron...

Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator. This activity also has helpful...

Construct a simple battery that's able to power a small light or motor out of foil, salt water, and charcoal. A helpful video, produced by the Exploratorium, guides you along on this activity.

In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up. Learners connect their experience with cylinders to the world outside the...

In this activity, learners follow a recipe to make hollandaise sauce. Learners discover how cooks use egg yolks to blend oil and water together into a smooth mix. In chemistry, this mixture is...

This activity provides step-by-step instructions on how to build a rain stick, a musical instrument originating in South America. With a cardboard tube, some nails, and a handful of uncooked beans...

In this activity, learners explore how changes in fluid pressure affect the buoyancy of a Cartesian diver inside a plastic soda bottle. This guide includes instructions for building a diver out of...

In this activity, you'll make an electric motor--a simple version of the electric motors found in toys, tools, and appliances everywhere. The activity includes three short online videos:...