Build a Simple Balloon Car that Works!

第 1 季，第 90 集: A balloon-powered car is a simple and fun STEM project. Here, you will learn how to make your own by following a few easy steps. A balloon car is easy to make and requires no batteries or fuel. All you need to do is blow up the balloon and attach it to the wheels of your car. The air inside the balloon does all of the work. This project is perfect for kids because it’s easy and inexpensive and tea