Students from Associate Professor of Earth and Environmental Sciences Timothy Ku’s Environmental Geochemistry class presented their findings regarding the geochemical makeup of Lake Hayward in East Haddam, Conn., to almost two dozen members of the Lake Hayward and Wesleyan communities on Dec. 2 in a presentation at the Russell House. The class is part of Wesleyan’s Service Learning Program spearheaded by Rob Rosenthal, director of Allbritton Center for the Study of Public Life, the John E. Andrus Professor of Sociology. “Working in science, it's always fulfilling when you have people who care about the information you’re looking at,” said Zachary Kaufman ‘16.…