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In this activity, learners construct a simple game to test their hand-eye coordination and steadiness of hand.

In this pencil and paper activity, learners work in pairs and simulate how astronomical spacecraft and computers create images of objects in space.

In this activity, learners help a poor cartographer color in the countries on a map, making sure each country is colored a different color than any of its neighbors.

In this three-part activity, learners use paper to explore Bernoulli's Principle — fast-moving air has lower pressure than non-moving air.

In this activity, learners explore the properties of paper by constructing and modifying paper airplanes.

In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.

Build a house you can fit inside, using cardboard tubes.

In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.

Learners create an Incan counting device called a quipu (pronounced kee-poo).

In this activity, learners imagine what the world might look like if we could build an elevator to space!