Classified for credit

Small coastal aquarium in Crescent City featuring local Pacific marine life — covers marine biology, tidal ecosystems, and coastal ecology.

Indoor aquarium attraction in Bismarck — supports aquatic biology, marine and freshwater species identification, and basic ecology.

Small Louisiana aquarium providing hands-on marine biology and aquatic ecology observation for local freshwater and Gulf species.

Specialty museum in Port Gamble, WA with one of the largest seashell collections in the U.S. — covers marine biology, mollusks, and ocean biodiversity.

Museum dedicated to West Virginia's glass industry with historical equipment and finished pieces — materials science, glassblowing chemistry, and regional industrial history.

Museum in Ohio's historic glass-manufacturing city covering glassmaking processes and history — materials science, industrial chemistry, and manufacturing history.

University teaching observatory with public viewing nights — covers telescope optics, stellar astronomy, and observational science methods.

Licensed wildlife rehabilitation center near Columbus — covers native Ohio species biology, animal care, and conservation practices.

Community astronomy learning center in PA oil country — covers telescope optics, celestial mechanics, and observational astronomy.

Museum tracing telephone technology from the telegraph era to modern communications — covers electrical engineering history and the science of signal transmission.

Historic grist mill in Williamson County — mechanical milling technology, water-powered machinery, and 19th-century agricultural processing methods.

California Historical Landmark powerhouse (Station A) that first transmitted long-distance AC electricity in 1895 — covers electrical engineering history and power generation.

Hands-on petting farm near Rapid City — covers domestic animal husbandry, basic livestock biology, and farm ecology for young learners.

Working farm with live animals and hands-on activities — covers animal husbandry, agricultural science, and farm ecosystems.

Interactive farm experience with domestic animals and agricultural activities — supports animal biology, plant life cycles, and food systems for early learners.

Working mill and salvage lumber operation in Baker County — demonstrates historic milling processes, wood science, and sustainable materials reuse.

Restored 1896 steel-roller grist mill in a state park setting — covers milling mechanics, grain processing, and 19th-century agricultural technology.

Historic U.S. Mint building in Carson City with exhibits on coin production and metallurgy — covers numismatics, precious-metal refining, and monetary history.

University of Denver public observatory with telescope access — astronomy, optics, and observational math in a historic university setting.

Licensed wildlife rehabilitation center — covers native Kansas wildlife biology, animal care, and ecological roles of raptors and mammals.

Community college planetarium with public shows on astronomy, space science, and the night sky — covers celestial mechanics, scale of the universe, and observational astronomy.

Air and space museum with aircraft exhibits near Eugene — aerospace engineering, flight mechanics, and aviation history.

College of Idaho natural history museum with fossil, mineral, and wildlife collections — covers paleontology, geology, and regional ecology.

University-affiliated public observatory in Melbourne — covers telescopic observation, celestial mechanics, and introductory astrophysics.