Through experimentation and active investigation of motion and forces, students are challenged to design, build, and test a simple gravity-powered car that is at least 8 cm wide and less than 30 cm long. The completed Gravity Racer should be able to roll down a ramp and travel for at least 100 cm. Prior to designing the 'Gravity Racer', students are exposed to the 5E learning cycle model (Engage, Explore, Explain, Elaborate, Evaluate), where they will investigate how forces act upon various objects, collect data and then apply what they learned to their racers.