BRISTOL, Va. — Students at Sullins Academy began work Tuesday on an outdoor gardening project expected to serve as a science classroom. Working with representatives from Appalachian Sustainable Development, about 20 eighth-grade students measured the location where six raised garden beds will be placed. Actual installation is planned for today as part of Earth Day. “The students are designing where the gardens will be — flagging and measuring — more of a math-related day,” He