Design and build a small alarm that is easily hidden. Think of places you would like to hide an alarm.

Finish creating the engine invention to get the item to the pipe; then test it to see if it works, or you can design your own machine.

This challenge is to design and build a sturdy emergency shelter that can fit one person and easy to build. Are you up to the challenge?

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?

This challenge is to design and build a cushion system that can safely land an egg dropped onto the floor from three feet up. Are you up to the challenge?

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 rubber band-powered, paddle boat that paddles across the water? Give this a try and have a paddle race with a friend.

This challenge requires you to modify a paper cup so it can zip down a line and drop a marble onto a target.

This challenge is to design and build a crane and determine how heavy a load it can lift.

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

Can you design and build a watercraft that will keep 25 pennies afloat for at least 10 seconds? Give it a try!

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?

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

Design a way to launch ping pong balls high into the air, test it, and make changes if needed.

Use your creativity to design and build a paper table, at least 8 inches tall, that is strong enough to hold a heavy book. Challenge your friends to see whose table can hold the most weight.

Use a balloon to build an air-powered rocket and launch it to see if you can hit a target.

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!

Are you up to the task of making a mini robot? It requires a small motor, a button battery, wires, and a toothbrush.

Create your own 4-wheel balloon cars with simple household items and race them across the floor.

Make your own 2-wheel, air-power cars and race them or play games with them. Balloons and straws are them main components.

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...

Can you design and build a device that will let you grab and drop objects from at least two feet away? Give it a try!