Classified for credit

Small South Florida aquarium with marine life exhibits — marine biology, reef ecosystems, and fish taxonomy.

Public observatory operated by the Columbia Astronomical Society — covers telescope optics, stellar observation, and introductory astrophysics.

Small creation-focused fossil and dinosaur museum in Broken Bow, NE — covers paleontology, fossil identification, and geological history.

Restored 19th-century grist mill demonstrates grain milling mechanics, millstone operation, and water-wheel physics in a working historical setting.

University seismological and geophysical observatory — covers earthquake science, seismograph instrumentation, and earth science research methods.

Bowdoin College observatory with public viewing opportunities — astronomy, optics, and celestial mechanics through telescope observation.

County natural history museum in northern Utah with fossils, minerals, and regional wildlife specimens — covers earth science and local ecology.

Public observatory in Beech Island, SC — covers telescopy, observational astronomy, and celestial mechanics through guided viewing sessions.

Public observatory at a dark-sky site near Branched Oak Lake — covers telescopy, celestial navigation, and observational astronomy.

Natural history museum with paleontology, regional geology, and archeology exhibits covering the prehistoric Brazos Valley ecosystem.

Natural science museum on the Texas Gulf Coast with shell, fossil, and marine biology collections — covers coastal geology, marine ecology, and paleontology.

NOAA-affiliated interpretive center and aquarium on Padilla Bay estuary — covers marine biology, Pacific Northwest estuarine ecology, and conservation science.

Amateur-astronomy observatory open to the public — covers telescope optics, celestial navigation, and observational astronomy.

Dark-sky astronomy site operated by St. Charles County Parks with telescopes for public stargazing — covers observational astronomy and optics.

Working seltzer bottling operation and museum covering carbonation science, local immigrant industry history, and Brooklyn food-production heritage.

State-park-operated public observatory with telescopes available for nighttime stargazing — covers astronomy, optics, and dark-sky observation in a designated dark-sky park.

University-affiliated science center at UMaine with hands-on STEM exhibits — physics, engineering, and applied mathematics aligned to K–12 curriculum.

University of Florida planetarium and space science center with public shows — covers astronomy, astrophysics, and Earth-space systems.

Museum documenting Bucksport's paper mill industry — covers papermaking processes, industrial chemistry, and Maine's manufacturing history.

Broward College planetarium with full-dome shows and telescope programs — covers astronomy, orbital mechanics, and the electromagnetic spectrum.

Regional natural history and science museum in Bakersfield covering local paleontology, geology, and Central Valley natural history.

Buffalo Bill Dam visitor center explains how the 1910 concrete arch dam was engineered — hydroelectric power generation, dam hydrology, and civil engineering.

Museum housing a rare Pierce-Arrow collection alongside early automotive and transportation history — covers mechanical engineering, industrial design, and 20th-century manufacturing.

Historic Carnegie-era planetarium and science building in Pittsburgh — astronomy, optics, and history of public science education.