This scientific investigation is geared toward a high school level investigation the of conservation of mechanical energy (Kinetic and Potential Energy), using relatively simple materials (plastic or foam tubing, marbles, stopwatches, tape). Students love creating the roller coasters and observing this relatively simple phenomena. They learn that the total energy in the system is equal to the sum of Potential and Kinetic Energy, and that energy is conserved in this system if you factor in fric