Nashua River Watershed Association Education Director Mary Marro, left, pours measured amounts of liquefied cherry-flavored gelatin for a science project.
Nashua River Watershed Association Education Director Mary Marro, left, pours measured amounts of liquefied cherry-flavored gelatin for a science project. Assisting her was Stacey Chilcoat, the center s Classroom Director (rear). (Nashoba Publishing/Mary Arata)