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Homemade car runs with balloon

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Some of the things that slow balloon cars down, that you have to overcome, are their own weight, air resistance, friction, and inefficient use of the air escaping the balloon. Reducing weight, minimizing drag, cutting friction and improving nozzle air flow will all help make your balloon car go faster. Examine your car carefully for any opportunity to shed as much weight as possible. The force that pushes your car forward is equal to the mass of the car multiplied by the acceleration of the car. Therefore, when you decrease the mass, the acceleration will increase and the car will reach a higher top speed before the balloon runs out of air. Use lightweight cardboard or balsa wood for the frame, and attach parts with as little tape and glue as possible.
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Build A Balloon Rocket Car + Video

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Balloon-Powered Car Challenge | Science Project

Introduction Turn a pile of trash into a toy car—and watch it go! In this activity you will learn some physics concepts and use recycled materials to build a toy car that is propelled by a balloon. You can even find a friend, build two cars and race them against each other. Whose car will go the fastest? Background It might not seem like it at first, but a simple balloon car is loaded with physics and engineering concepts! When you inflate a balloon, it stores potential energy in the form of stretched rubber and the compressed air inside. When you release the balloon, this energy is converted to kinetic energy—the energy of motion—as the balloon zooms around the room.
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Balloon-Powered Car Challenge

On April 28 and 29, thousands of kids, teens, teachers and families will gather in Washington DC for the National Science and Engineering festival. This is not your average science fair. This is a hands-on, get in there and experiment science fair.
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Making toy cars is a fun and easy project that you can do at home. You most likely have all the materials you need lying around the house already. Instead of buying a new toy car, consider making your own. Then, use a drill or small kitchen knife to poke holes in the center of 4 small plastic lids to make wheels.
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