The Bill Memorial Library in the City of Groton invites children in grades K - 5 to Rock Cycle Ruckus, presented by the Denison Pequotsepos Nature Center on Tuesday, July 31, 2018 at 1:00 p.m. Rocks are amazing! Learn about the cycle they go through as they turn from sedimentary to metamorphic to igneous and back again. We will play some games and see some awesome rock samples. No registration is necessary; for information call the library at 860-445-0392.