Classified for credit

Lion's Den animal exhibit within Franklin Park Zoo in Boston — covers large-cat biology and zoo conservation programs as part of a larger zoo visit.

Public observatory on Nantucket offering guided telescope sessions — astronomy, optics, and observational science.

Martha's Vineyard coastal wildlife refuge — shorebird and migratory species habitat study, coastal ecology, and barrier island geography.

NPS historic site serving as Washington's headquarters in 1775–76 and later home of poet Henry Wadsworth Longfellow — covers Revolutionary War history and American literature.

State park along the Merrimack River at the site of Lowell's 19th-century textile mills — covers Industrial Revolution, water power, and labor history.

Game farm with live exotic and native animals — covers wildlife biology, animal adaptations, and conservation.

Small private zoo with exotic and domestic animals — covers basic zoology, animal behavior, and conservation awareness for younger children.

Springfield museum covering regional history from Native peoples through the industrial era — supports Massachusetts local history and social studies.

19th-century Federal-style estate with historic greenhouse and grounds — social history of New England gentry and period horticulture.

Mass Audubon sanctuary on a coastal peninsula with migratory bird habitat and rocky shoreline — covers coastal ecology, ornithology, and Atlantic shore biology.

Boston harbor maritime museum covering naval history, ship technology, and the role of the sea in New England commerce.

Island museum covering Martha's Vineyard's maritime heritage, Indigenous Wampanoag history, and whaling-era social history.

Mass Audubon wildlife sanctuary with guided and self-guided trails — supports ornithology, forest ecology, and field biology observation.

Mass Audubon wildlife sanctuary with self-guided trails — bird identification, native plant ecology, and habitat conservation in a protected woodland.

Mass Audubon wildlife sanctuary with wetlands and meadow trails — field ecology, bird identification, and riparian habitat study.

Mass Audubon education center at the gateway to Plum Island — shorebird ecology, migratory bird biology, and estuary habitat study.

Mass Audubon sanctuary on Cape Cod with salt marsh and upland trails — covers coastal ecology, bird identification, and conservation biology.

Mass Audubon urban nature center on the Charles River — urban wildlife ecology, river biology, and environmental stewardship for younger learners.

Mass Audubon education center with bird art gallery and wildlife sanctuary trails — ornithology, ecology, and natural-history illustration.

Mass Audubon sanctuary on a restored cranberry bog — covers wetland ecology, habitat restoration, and native wildlife biology in a protected reserve.

Mass Audubon sanctuary with meadow, wetland, and forest habitats — supports field ornithology, plant ecology, and wildlife conservation education.

Mass Audubon wildlife sanctuary featuring holly collections and bird habitat — covers plant ecology, ornithology, and native species conservation.

Urban wildlife sanctuary with trails, native plantings, and Audubon-led programs covering bird identification, ecology, and habitat restoration.

Mass Audubon wildlife sanctuary with trails and a conservation center — covers local bird ecology, wetland biology, and wildlife habitat in Central MA.