Balloon Rocket Car Science Fair Projects

Balloon rocket car science fair projects are not only a lot of fun, but they also make great physics science experiments. Below you will find the instructions for one balloon rocket car experiment as well as information on how you can expand on this project to create your own very easy science fair projects. Enjoy!

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Balloon rocket car science fair projects come in a couple of varieties. This sample project is just one option that you have. To complete this project you will need: a round balloon, a piece of wood, an axel with wheels that fits your piece of wood. hot glue and a couple of lungs full of air.

The hypothesis for this experiment is that you will be able to move a balloon rocket car further with a larger balloon then you will with a smaller balloon. Obviously, this means that you will need to run a couple of experiments. The first experiment will involve a small round balloon, the second experiment will involve a medium sized balloon and the third experiment will involve a large balloon. Make sure you calculate the volume of each balloon before you run your experiment, this data will be important later on.

To complete your experiment you will first need to build your rocket car. To do this you will simple attach the wheel axel to the bottom of your wooden board. You will secure your balloon to the vehicle with a piece of double sided tape.

Okay, now you are ready to run your experiments. Each experiment will follow these steps: (1) inflate your balloon but pinch the end so air won't escape, (2) measure its volume, (3) attach the balloon to the board with tape, (4) release your pinch and (5) measure how far the vehicle travels.

After you complete all of your physics science fair projects for this experiment, you will need to analyze your data. Start by determining if the balloon did impact how far the vehicle went. This will be done by seeing which balloon pushed the vehicle the farthest. Next determine if there is a correlation between the volume of a balloon and the distance that the vehicle traveled. What does this tell you about the force per square inch of balloon volume?

You can expand on this physics science project in a couple of ways. First of all you can experiment with balloons that have different shapes. You can also use helium instead of air from your lungs to fill the balloons. Finally you can change the design of the balloon rocket car. What did you learn from each of these experiments? How can you make this experiment your own?