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Learners build at least two different spinners (tops) to investigate how mass distribution, size, and shape affect the length of time the spinner spins.

Learners build structures from spaghetti and marshmallows to determine which structures are able to handle the greatest load.

In this activity, learners design and build a NASA rover using raw pasta and candy with a limited imaginary budget.

Based of the The Tech Challenge 2015, learners will engage in two mini-design challenges related to seismic engineering.

In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

What's a more compelling problem to solve than being stranded on a deserted island?

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

In this activity, learners build small animated toys that move.

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

In this activity, learners use design thinking to design and build their own bridge out of household materials including adhesives and/or connectors.

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.

Learners work in groups to construct bridges using stale marshmallows and toothpicks.

In this activity, learners design, build and test a model suspension bridge for sturdiness and strength.

This activity explores the main algorithms that are used as the basis for searching on computers, using different variations on the game of battleships.

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

In this design activity, learners create a vehicle that can transport a load, like a favorite toy or as a recycled object, from the top of a zipline to the bottom using only gravity.

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

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