Classified for credit

Agricultural museum on working acreage in California's Central Valley — covers farm equipment history, crop science, and agribusiness.

Campus planetarium at Fresno State offering astronomy shows — covers celestial mechanics, the solar system, and observational science.

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

California State Historic Landmark powerhouse preserving original 1895 AC generators — covers electrical generation history, engineering, and energy transmission.

Community college public observatory with telescopes — covers astronomy, optics, and celestial mechanics.

Fossil discovery center with local San Joaquin Valley paleontology exhibits and dig-site specimens — earth science, paleontology, and prehistoric ecology.

Public observatory in Fremont Peak State Park — volunteer-led programs cover telescope optics, astrophysics, and observational astronomy.

Campus planetarium with sky shows — covers astronomy, celestial mechanics, and the mathematics of orbital motion.

NPS interpretive museum inside Sequoia National Park — giant sequoia biology, Sierra Nevada ecology, and park conservation history.

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

Working model railroad museum with large-scale layouts — covers engineering, scale modeling, and the history of rail transport.

Museum documenting NASA's Goldstone Deep Space Communications Complex — covers radio astronomy, telecommunications engineering, and space exploration history.

Community college planetarium in Salinas — covers astronomy, celestial mechanics, and the night sky through projected shows.

Physical archive of the Internet Archive in Richmond — covers digital preservation, computer history, and information science.

Jelly Belly factory tour (retail store location) showing candy manufacturing — covers food science, quality control, and production processes.

College-operated planetarium with public shows — covers celestial mechanics, cosmology, and observational astronomy.

Historic Sierra Nevada hard-rock gold mine and museum — covers mining geology, mineralogy, and California Gold Rush industrial history.

Community college public planetarium offering astronomy programs — covers stellar evolution, planetary science, and celestial navigation through scheduled shows.

Los Medanos College planetarium — astronomy and full-dome sky shows for public and school groups.

Hands-on children's discovery center focused on Kern County natural history, local ecology, and basic earth science.

Desert museum near China Lake featuring geology, Native American archaeology, and Mojave Basin natural history exhibits.

Public observatory in San Jose offering telescope viewing — covers astronomy, optics, and celestial mechanics with public viewing nights.

Natural history museum within Morro Bay State Park — covers Central Coast marine biology, local geology, and the ecology of Morro Bay estuary.

Summit museum atop Mount Diablo covering regional geology, ecology, and the mountain's extraordinary 360-degree geographic sightlines.