All Design Challenges

Build a Cam Mechanism

Create a simple machine that transfers a rotational motion into a linear vertical motion.

Create a Circuit to Light an LED

Build a simple circuit that enables you to turn on a small LED.

Build a Hydroelectric Waterwheel

Design a waterwheel that can generate electricity from the flow of water.

Generate Electricity to Light Up an LED

Design and build a simple generator that turns on a small LED light for at least 1 minute without using a battery.

Build a Joint Mechanism

Turn a straw into a simple machine that works in the same way that the joints in your body work.

Build a Crank Mechanism

Build a simple machine that transfers rotational motion into linear reciprocating motion (repetitive back and forth motion).

Engineer a Redwood Tree

Build a redwood tree that is taller than you and that can stand on its own.

Map the Ocean Floor

Build a device that can map out the shape of the ocean floor.

Engineer a Space Tool

Design a tool that an astronaut could use to pick up an object in space.