Classified for credit

Large hands-on science center inside Union Station — covers physics, biology, earth science, and engineering through interactive exhibits.

Large free science center in St. Louis with hands-on exhibits spanning physics, engineering, technology, and life sciences.

Large conservation museum and aquarium featuring 35,000+ animals — covers aquatic biology, wildlife conservation, and vertebrate ecology across immersive galleries.

Natural history museum at Big Cedar Lodge featuring Ozark fossils, Native American artifacts, and regional archaeology — paleontology and natural history.

Abandoned lead mine with underground tours covering geology, mining engineering, ore extraction history, and Missouri's industrial past.

Guided tour of a natural limestone cave with active speleothem formations — covers geology, cave formation, karst hydrology, and Missouri Ozarks geography.

State park featuring 1.5-billion-year-old granite boulders — covers igneous geology, erosion, and Missouri Ozarks ecology with self-guided trails.

Restored WWII-era and early-aviation aircraft with hands-on exhibits — covers aerodynamics, engineering history, and the physics of flight.

Full-dome planetarium at the St. Louis Science Center — celestial mechanics, solar system science, and observational astronomy via immersive sky shows.

Hands-on children's discovery center at Missouri S&T — interactive exhibits cover basic science, math, and engineering concepts.

Boat tour through a natural cave system at Big Cedar Lodge — covers Ozark karst geology, cave formation, and subterranean ecosystems.

State historic site preserving a mastodon excavation — covers Pleistocene paleontology, Ice Age megafauna, and the archaeological record of early human presence in Missouri.

Commercially guided cave tour through Ozark caverns — covers speleology, karst geology, stalactite/stalagmite formation, and cave ecology.

Large-format immersive dome theater at the Saint Louis Science Center showing science and nature films covering astronomy, earth science, and ecology.

Guided tours through a living cave system cover speleology, geology, karst formation, and cave ecology.

Indoor aquarium with interactive touch tanks — covers marine biology, aquatic ecosystems, and animal adaptation for elementary and middle grades.

Indoor ocean aquarium with live marine exhibits — supports marine biology, ocean ecology, and animal adaptation study.

Indoor butterfly conservatory at Faust Park with live tropical species and a chrysalis emergence chamber — covers lepidopteran life cycles and entomology.

Commercial cave tour in the Ozarks — covers speleology, karst geology, cave formations, and Missouri cave ecosystems.

Interactive natural-science building inside the St. Louis Zoo covering animal biology, ecosystems, and conservation through hands-on exhibits.

Only surviving 19th-century woolen mill in the US — covers textile manufacturing, water-powered machinery, and Industrial Revolution technology.

Commercial aquarium with live marine and freshwater species exhibits — covers aquatic biology, ecosystems, and animal adaptations.

Public observatory offering telescope viewing and astronomy programs — covers stellar physics, optics, and celestial navigation.

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