Sweet Harvest

Students of Sara Velardi's Environmental Studies 336 class, Sweet Harvest, collect sap from maple trees they tapped two weeks ago and use a refractometer to measure the amount of sugar content from their harvest.
Students of Sara Velardi's Environmental Studies 336 class, Sweet Harvest, collect sap from maple trees they tapped two weeks ago and use a refractometer to measure the amount of sugar content from their harvest.