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Learners take on the role of environmental engineers as they design water filters.

In this activity, learners explore how wind tunnels provide feedback to engineers about the performance and durability of products such as planes, cars, and buildings.

In this activity, learners explore the design of tall structures such as skyscrapers and telecommunication towers.

In this activity, learners explore how the hull shape impacts a ship's performance and stability.

In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.

In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust.

In this activity, learners consider how a simple machine, a lever, turns a small push or pull (a small force) into a larger--or stronger--push or pull (a larger force).

In this activity, learners are invited to imagine the park of their dreams!

In this project, students explore how levers work, by making a puppet with moving limbs.

In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink?

Build and test a scale model of a rainforest canopy walkway.

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

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

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

Learners construct an electricity-generating wind turbine out of a plastic bottle.