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Balloon Race Car - Pressure Experiment
 
Racing Experiment
Materials you will need:
• Balloon
• PVC tubing (piping or KFC large straw from krushems)
• 2 Rods/dowels (wooden skewers)
• 4 Cotton reels (wheels)
• Rectangular plastic take away container
• Scissors
• Blue tack
balloon car items image
 
Steps

1.) With adult supervision make four holes in the plastic container (two along each long side for the rods to go through for the wheels. Try to match up the holes so that they are across from each other to make them even and that they are not too high up so that when you put the wheels on they will not reach the floor.

2.) Make a fifth hole at one end of the container for the PVC pipe to fit in. Make sure that you do not make this hole to big; you make it to be a tight fit for the pipe to hold it in place.

3.) Place the two rods through the 4 hole that you made in the container.

                             

4.) Place the cotton reels or wheels on each of the 4 ends of the rods and put some blue tack (modelling clay) at the ends of the rods so that the wheels do not fall off.

                             

5.) Place the balloon over on end of the PVC tubing or straw then position it is the last hole at the end of the container with the balloon positioned inside the container.

                             

6.) Now the fun!!! Blow up the balloon and pinch the neck of the balloon so that the air does not escape.

                             

7.) Place your balloon car on the floor so that the open end of the balloon pipe is facing you and let go.

How did it do?

Did your balloon car take off and go in a straight line?

How fast did it go?

Think of different things you could do to make your balloon car go really fast and in a straight line. Use different containers; get some aerodynamics going by making a pointed front to your car.

Get a friend to make the same type of balloon car and have fun racing them.

 
 
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