Classified for credit

Wildlife rehabilitation center housing non-releasable native animals — raptor biology, wildlife medicine, and California native species ecology.

Museum in Mammoth Lakes area documenting mammoth fossil discoveries — covers paleontology, Pleistocene megafauna, and Eastern Sierra geological history.

NOAA-affiliated visitor center covering the Monterey Bay National Marine Sanctuary — ocean ecosystems, marine biology, and federal conservation science.

Historic working observatory on Mt. Wilson with historic 100-inch Hooker telescope — covers astrophysics, optics, and the history of modern astronomy.

Hands-on science and innovation museum in Santa Barbara with interactive exhibits covering physics, engineering, and creative problem-solving.

NASA Ames Visitor Center with aeronautics and space-exploration exhibits — covers aerospace engineering, physics, and space science.

Marine science education center in Dana Point with tall-ship sailing programs, ocean biology exhibits, and hands-on coastal ecology.

Hands-on pinball museum with 100+ playable machines — covers mechanical engineering, physics of motion, and electronics history.

Working research observatory on Palomar Mountain with public gallery and the historic 200-inch Hale Telescope — covers observational astronomy and optics.

Children's imaginative STEM play space themed around a professor's workshop — delivers hands-on physics, engineering, and problem-solving for early learners.

Public planetarium at Riverside City College — covers astronomy, the solar system, stellar physics, and celestial navigation through live dome presentations.

On-campus paleontology museum at The Webb Schools holding one of the nation's largest fossil collections — vertebrate paleontology and evolutionary biology.

Working planetarium at the Rosicrucian Egyptian Museum campus — covers astronomy, the solar system, stellar physics, and celestial navigation.

Live-steam railroad museum with operating miniature locomotives — covers mechanical engineering, steam power, and railroad history through hands-on rides and demonstrations.

County museum with natural history, paleontology, and archaeology collections — covers earth science, fossils, and regional prehistory.

Large-scale model railroad museum with multiple operating layouts — covers civil engineering, geography, and the history of rail transportation.

Natural history museum with fossil, gem, and wildlife collections — covers paleontology, geology, and California ecology with a full planetarium.

Marine science center on Stearns Wharf with live touch tanks and ocean exhibits — covers marine biology, tidal ecosystems, and Pacific Coast ecology.

Interactive aquarium at LEGOLAND with hands-on touch pools and marine exhibits — covers marine biology, ocean ecosystems, and fish adaptation.

UC Santa Cruz marine research center with public exhibits — covers marine mammal biology, oceanography, and active coastal research methods.

Aquarium of the Pacific touch-tank exhibit focused on sharks and rays — covers elasmobranch biology, marine adaptations, and ocean ecology.

Bureau of Reclamation visitor center at one of the world's largest concrete dams — covers dam engineering, hydroelectric power, and water management.

Dark-sky observatory and nature center adjacent to Joshua Tree NP — covers astronomy, Mojave desert ecology, and dark-sky science.

Sacramento's hands-on science center with exhibits on energy, earth science, and technology, funded by the regional utility SMUD.