Fourth Graders Engineer Online Roller Coasters to Explore Forces and Motion

Scott Blake’s fourth grade science classroom was buzzing with excitement as students designed and tested virtual roller coasters—no engines required. Using an online simulation program, students built tracks, ran trials, and tweaked designs to meet specific challenges: one particular challenge especially excited the kids: create the slowest roller coaster possible while still safely reaching the finish line and completing a loop.

As students experimented, they discovered that great coaster design is all about physics. The class explored gravity, potential and kinetic energy, acceleration, and centripetal force, learning that real roller coasters rely on height and gravity—not motors—to move riders through twists and loops. To maximize time, students flattened the opening stretch of their tracks, carefully balancing a slow start with enough energy to carry the coaster through the loop without flying off the rails.

The hands-on challenge encouraged problem-solving, creativity, and plenty of trial and error. As designs improved and final times slowed, students gained a deeper understanding of how forces and motion work together—proving that science concepts really come to life when learning feels like play.