4th and 5th grade students have been exploring the physics behind what makes roller coasters man-made, gravity defying wonders. The thinking routine used in the beginning of their discovery was "Generate, Sort, Connect, Elaborate" to introduce the scientific method and give students a better understanding of how scientists develop their research and discovery process. The task was then to design and create their own model versions of roller coasters through a series of trial and error. Before building the roller coasters however, our student scientists carefully designed a blueprint that demonstrated kinetic and potential energy, centripetal force, friction, and inertia. Through this hands-on discovery, our 4th and 5th grade students came away with a new knowledge of how science can explain the natural world.