Seabrook: Brooke Walsh, drops a marble into her team's roller coaster named "Rocket Science" with mates Cameron Whelan, center, Rose Slayton and, out of view, Katelyn Deo, all 13. The Seabrook Middle School students were building the roller coasters in their physics section of science learning about accelerations, centrifugal force and the like. Bryan Eaton/Staff Photo

130528BEAamusement