Here's what you need to make your 2-Wheel Balloon Car!
Make the jet
Put the long end of a flexible straw into a balloon.
Make the jet (cont'd)
Attach the straw and balloon so that no air can escape, using either a rubber band or tape.
Attach the jet
Make the axle and wheels
Attach the body
Power the jet
Did you know?
Your balloon car uses jet power to move. The stored air in the balloon pushes through the straw, creating thrust—the force that pushes the car forward. So when air from the balloon moves in one direction, it pushes the car in the opposite direction.
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