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In this activity, learners explore how boats are engineered to achieve speed.

In this activity, learners explore how engineers have developed big wheels or Ferris wheels.

In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.

In this engineering design challenge, learners build an air-powered spinning machine.

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 design challenge activity, learners build a rubber band-powered rover that can scramble across the room.

In this activity, learners explore rocketry and the principals of space flight.

In this activity, learners discover how NASA engineers develop experimental aircraft.

In this activity, learners explore how the process of folding has impacts on engineering and is evident in nature.

Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.

In this activity, learners investigate passive solar building design with a focus solely on heating.

In this activity, learners will build a stomp-powered launcher to blast off paper rockets they design. Materials can be found at a local hardware store or you may already have them at home.

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

In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.

In this activity, learners build a mini dancing robot. This engineering activity introduces learners to electricity, circuits, switches, conductivity, and motors.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

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