Nashoba Tech AP Biology students tour Nashua River

From left are Nashoba Tech students Lexis Bushnoe (Townsend), Michaela Flanagan (Chelmsford), Brianna Coburn (Leominster), Kevin Lewis (Ayer), Wilbannelys Ramos (Lowell), Spencer Fusco (Billerica), Cheyenne Whittemore (Townsend), Jared Abreu (Townsend), Karoline De Oliveira (Tyngsboro), Bridget McPartlan (Ayer) and Jacob Gray (Littleton). COURTESY PHOTO

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Seniors in the Andrea Knowles' Advanced Placement Biology class at Nashoba Valley Technical High School recently visited the Nashua River Watershed Association's headquarters in Groton to participate in its River Classroom, where they learned about the Nashua River's past, present and future. Students also got to canoe on the river and test the water's pH density, dissolved oxygen and water turbidity, then scooped invertebrates from shallow water and identified the life forms along the water's edge.

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Nashoba Tech AP Biology students tour Nashua River