Sat 4/27 Earth Day Event: Healthy Water with Clarkson University Learn about new technologies keeping our waterways plastic-free. on program will be led by engineers from Clarkson University at 11am-12pm & 2pm-3pm. Sat 4/27 @ 11:00 am [ +1 dates] Potsdam, NY. North Country Children’s Museum, 10 Raymond Street, 13.. Share facebook twitter Like Edit Event Delete Event