Classified for credit

Hands-on science center in western Tennessee focusing on local natural history, fossils, and ecology — supports earth science and regional biology.

Colorado School of Mines applied science and engineering center in Golden — covers materials science, chemistry, and engineering design for advanced STEM study.

Museum housing one of the world's largest steam-driven Cornish mine-pumping engines — covers mechanical engineering, mining history, and thermodynamics.

Preserved 19th-century charcoal iron furnace with intact equipment — covers iron smelting, industrial chemistry, and Pennsylvania's iron industry history.

Community college planetarium with public shows — covers astronomy, celestial mechanics, and the scale of the solar system.

Museum covering commercial cranberry cultivation — addresses bog ecology, harvest methods, agricultural science, and the Pacific Coast cranberry industry.

Public observatory at a well-known science institute with telescope programs — covers optics, astronomy, and observational physics.

Public observatory in Topeka offering telescope viewing and astronomy programming — covers celestial mechanics, optics, and observational astronomy.

Mineral, fossil, and meteorite museum in southern Oregon — covers geology, mineralogy, and paleontology with hands-on specimens.

Commercial cave tour in Cave City featuring onyx speleothems — covers karst geology, cave formation, and mineral crystallization.

College of Southern Nevada's public planetarium — covers astronomy, celestial mechanics, and earth-science concepts through dome presentations.

Campus planetarium offering sky programs — covers astronomical concepts, celestial navigation, and the physics of light and optics.

Public observatory on the Cumberland Plateau offering telescope viewing and astronomy programming in a low-light-pollution rural setting.

Public planetarium with sky shows covering astronomy, the solar system, and celestial navigation — supports science and math standards.

Working farm near Austin offering educational tours — covers plant biology, sustainable agriculture, and food-system literacy.

Dark-sky astronomical park with public observing programs — covers light pollution, telescope optics, celestial mechanics, and observational astronomy.

Community observatory with public viewing nights and museum exhibits — covers telescope optics, observational astronomy, and the physics of light.

Federal fish hatchery with historic grounds and archives — applied aquatic biology, fish propagation, and early 20th-century conservation history.

America's oldest brewery with guided tour of working facilities — covers fermentation biology, industrial history, and manufacturing process.

Campus-based science center with hands-on STEM exhibits covering physical and life sciences for school-age learners.

Private observatory near Homestead with public viewing sessions — covers telescope optics, celestial mechanics, and observational astronomy.

Working butterfly farm with live specimens in north Georgia — covers lepidopteran life cycles, metamorphosis, and pollinator ecology.

Working dairy farm with market — covers bovine husbandry, milk production, and Florida agricultural ecosystems.

Rutgers University historic observatory open for public viewing — covers telescope mechanics, celestial coordinates, and observational astronomy.