Youth in grades 6-8 are invited to explore ocean waves and develop sensors at a UMaine 4-H Science Saturday workshop from 8:30 a.m. to 2:30 p.m. March 28, at the University of Maine Darling Marine Center, 193 Clarks Cove Road, Walpole.Participants will be introduced to sensors, learn how sensors are used in marine science applications read more Explore the Ocean at 4-H Science Saturday