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This design challenge is an open-ended exploration of linkages, a group of parts connected by hinges, and the types of motion they can create.

Learners are given mysterious white powders and have to determine their identity with chemical tests.

In this adapted version of poker, learners practice writing chemical formulas by playing this chemistry card game.

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.

In this activity, which requires adult supervision, learners get to explore the awesome power of chemistry.

This activity was designed for blind learners, but all types of learners can use it to investigate heterogeneous and homogeneous mixtures and solutions, identify the differences, and explore the conce

DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique. This activity allows you to see long, stringy strands of DNA extracted from wheat germ.

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

In this demonstration, learners explore a variation of a Foucault pendulum, but upside down.

Many common household cleaners are antimicrobials.

Learners pour equal amounts of coffee, mineral oil, corn syrup, and alcohol into a beaker. The liquids resolve into stacked layers, and learners can infer which liquids are the most and least dense.

This is a guide for facilitating interaction at a touch tank with marine animals. The instructions are for setting up a display in an informal science center, but could work anywhere.

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 was designed for blind learners, but all types of learners can model how vibrating particles, such as in a sound wave, bump into other particles causing them to vibrate, and that the vib

In this activity, learners will explore how maps can provide information about a place and help us find our way from one location to another.

This activity was designed for blind learners, but all types of learners can explore means of physically separating a mixture using dissolving, filtration, and evaporation.

This activity was designed for blind learners, but all types of learners can play this game to learn about the major polyatomic ions (an ion that consists of two different elements).

In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.

In this activity, learners design and build a toy top out of simple, everyday materials and have the option to use the toy as an artistic tool.