Description People have been riding thrilling roller coasters since the 1800s. Gravity and kinetic energy make these rides exciting. But roller coasters aren?t just found at theme parks. Smaller versions can be made at home! Hills give energy to the car as it speeds along the track. Learn how to make a roller coaster by using materials such as plastic cups, marbles, and tape. Watch as your roller coaster zooms over hills and around loops!.