Classified for credit

Working sugar cane agricultural cooperative — covers plant biology, food production, agricultural economics, and the industrial processing of a major crop.

Sugar Express offers a look at Florida's sugarcane industry near Clewiston — covers agricultural science, crop processing, and the economic history of sugar production.

City-run wildlife center in Hayward, CA housing injured native animals — covers native California wildlife, animal rehabilitation, and ecological interdependence.

Working tropical fish farm in Homestead — covers aquaculture practices, fish biology, and freshwater/marine species cultivation.

Coral aquaculture and reef science facility in Fort Wayne, IN covering marine biology, reef ecosystems, and coral propagation techniques.

Private aquarium facility with marine and freshwater species exhibits — covers fish biology, aquatic ecosystems, and animal adaptations.

Working hobby farm in Dripping Springs — hands-on agricultural science, animal husbandry, and farm-to-table food production concepts.

Planetarium serving northwest Georgia — covers astronomy, the solar system, and celestial mechanics through dome projection programs.

Southern Utah University science center with exhibits and labs covering physical and life sciences — supports hands-on STEM learning aligned with secondary curriculum.

Community observatory in Plaistow offering public stargazing — covers telescope optics, celestial mechanics, and observational astronomy.

Candy-making retail shop with visible production area — introduces food chemistry, confectionery processes, and small-business economics.

Candy manufacturing facility offering factory tours — covers food science, confectionery production processes, and small-scale manufacturing.

Computer history museum with hardware exhibits tracing computing from mainframes to PCs — covers computer science, engineering, and tech history.

University planetarium offering sky shows — covers astronomy, celestial navigation, and the scale of the solar system.

Licensed raptor rescue and rehabilitation center — covers bird of prey biology, wildlife rehabilitation, and conservation ecology.

Military vehicle and technology exhibit in Seattle — covers mechanical engineering, armor design history, and 20th-century military technology.

Small aquarium and animal sanctuary with live sharks, stingrays, and reptiles — supports marine biology, animal adaptation, and wildlife rescue concepts.

Dedicated bee and pollinator discovery center at the Minnesota Landscape Arboretum — covers apiculture, pollination biology, and insect ecology.

College geology museum with fossil specimens including dinosaurs and Wyoming prehistoric fauna — paleontology and stratigraphic geology.

County natural-history center with specimens, fossils, and live animal exhibits — covers Indiana geology, native wildlife biology, and paleontology.

MIT student club with historic model railroad layouts demonstrating signal systems, electronics, and mechanical engineering principles.

Museum tracing telephone technology from early switchboards to modern communication — covers electrical engineering concepts and the history of telecommunications.

Working telephone museum in Ellsworth ME with historic equipment — covers the history and engineering of telecommunications technology.

Museum tracing telephone technology from early switchboards to digital networks — communications engineering, invention history, and technology evolution.