Balloon Car | Lesson Plan - Science Buddies Weigh each car and reward cars that are lighter weight. Measure how much additional weight the cars can carry a certain distance (like pennies). Build balloon-powered rockets instead of cars in the Two-Stage Balloon Rocket Lesson Plan. These projects can also be used to teach about Newton's laws of motion in addition to kinetic and potential Balloon Powered Car Lesson Plan | Study Distribute the text lesson How to Make a Balloon Powered Car and have students find the 'Steps' section. Divide students into groups and hand out sets of the materials to each group. Remind each..