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Learners make a simple battery out of "sandwiches" of aluminum foil, pennies, and a salt water-soaked paper towel.

This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

Learners explore the Bernoulli effect by building an airfoil (airplane wing) and making it fly.

Learners design different shaped bandages for different purposes. First, they draw their designs on paper.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

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

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

When a lot of people share one network (such as cars using roads, or messages getting through the Internet), there is the possibility that competing processes will create a “deadlock," or an interrupt

MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.

In this activity, learners explore how infrared technology is used by engineers to create equipment and systems for a variety of industries.