This challenge requires you to design and build a device that can pass above a surface and detect magnetic fields.

This challenge is to design and build a headphone system to hear a musical instrument (real or homemade) better. Can you do it?

This challenge is to design and build a tool that can take a core sample from the center of a potato. Are you up to it?

Can you build a blimp that hovers, and then modify it to use balloon power to travel in a straight path across the room? Try it!

Can you make a balloon hover in one spot and move without you touching it when you create air currents? Give it a try!

Your challenge is to design and build a rubber band-powered car that can crawl across the floor like a moon rover travels across the moon. Are you up to the challenge?

Can you build a battery-operated, spinning motor-powered arm that can move ping pong balls across the room? Take the challenge!

In this challenge, you will build a machine that can send a ball (golf or ping pong) at least 12 inches.

This challenge is to build a dance pad that sounds a buzzer or flashes a light when you dance on it.

This challenge is to build a four-stringed musical instrument that can play a tune on different pitches.

It's your job to design, build, and test a landing module that will provide a safe touchdown for your astronauts (marshmallows). Can you do it?

Take this challenge to design and build a rubber band-powered car and watch it go.

Can you design and build a robotic arm that can lift a cup off the table? Check this out and see!

Design and construct an environmentally safe holder for a six-pack of cans that is sturdy and easy to carry.

Show your creativity by designing and building a device that will launch confetti to your target!

Your favorite band is great at playing music but not so great at being organized. They keep misplacing their instrucments on tour.

Zippy Boxes is a fun stress-free puzzle game that will keep you entertained for hours. Move the colored boxes to the square containing the same colored key to unlock the crazy creature trapped inside. Parents and children will have a...

What can you build with things around the house? Select what you would like to make, click on three items you have and want to use, and click on the spinner to get ideas and instructions.

Can you build a blimp (airship) that travels in a straight path across the room? Give this one a try.

Your job is to design and build a ping-pong carrier and send it down a zip line in 4 seconds or less. Are you up to the task?

As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank of a crocodile-infested river. Can you help them figure out how to get across...

In a dystopian world, your resistance group is humanity's last hope. Unfortunately, you've all been captured by the tyrannical rulers and brought to the ancient coliseum for their deadly entertainment. Will you be able to solve the...

Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to you, but he knew that if he did, your relatives would pester you...