How Do You Make Balloon Pushed Rocket Cars?
Learn about Newton’s Third Law of Motion and the science of rocket engines by building a balloon-propelled car. These cars are powered by balloons which, when blown up, repel air backwards. This pushes the car forward with equal force in the opposite direction. This homemade science project doubles as a toy. Children of all ages will enjoy blowing up the balloon and watching their car race away. Experiment with materials and designs to determine which combination creates the fastest, farthest-travelling vehicle. Cut one of the straws into two sections. Each section must be equal to the width of the bottle. Tape the straw segments to the bottle in a perpendicular fashion, one near the front and the other near the back. Cut the wooden skewer into two segments that are slightly longer than the straw segments. Place the skewers inside the straw segments. Poke holes in the center of all the bottle caps with a hammer and nail. These are the wheels. Thread one on each end of the skewer sectio
