VERMONT- Lake Champlain Sea Grant invites students to become certified Watershed Explorers by completing a series of fun activities designed to teach them about watershed science and the Lake Champlain basin. The Watershed Explorer Challenge, while geared to grades five to eight, is also suitable for upper elementary or early high school students. Upon completion, kids can take the pledge to become an official Watershed Explorer before sending in a prepaid postcard to receive their certificate.