Classified for credit

Mining-history museum (likely Grass Valley area) covering California Gold Rush era hard-rock mining techniques and industrial heritage.

Air Force base heritage museum with aircraft and military artifacts — covers Cold War aviation history and aerospace technology development.

Marine science center on the Mendocino coast with exhibits on local ocean ecosystems — covers marine biology, coastal ecology, and conservation science.

City-operated canyon nature center with riparian and chaparral habitat trails — covers Southern California native ecosystems, wildlife biology, and field observation.

Urban nature center with riparian habitat, native plants, and wildlife observation — supports local ecology, bird biology, and environmental stewardship.

Small coastal aquarium in Crescent City featuring local Pacific marine life — covers marine biology, tidal ecosystems, and coastal ecology.

California Historical Landmark powerhouse (Station A) that first transmitted long-distance AC electricity in 1895 — covers electrical engineering history and power generation.

Community college planetarium with public shows on astronomy, space science, and the night sky — covers celestial mechanics, scale of the universe, and observational astronomy.

Small accredited zoo inside Irvine Regional Park with native California and exotic animals — supports zoology and wildlife conservation study.

Foothill state park on the Diablo Range with grassland and oak woodland habitats — supports California ecology, geology, and geographic study of the Coast Ranges.

Natural history museum with Monarch butterfly, bird, and marine specimen collections — covers Central California Coast ecology and taxonomy.

Satellite campus of the Palm Springs Art Museum with rotating and permanent collections — covers modern and contemporary art in a Coachella Valley context.

Community college public planetarium offering astronomy programs covering celestial mechanics, the solar system, and observational science.

State park adjacent to Palomar Observatory — combines chaparral and conifer ecology with proximity to a world-class astronomical research site.

Restored adobe hacienda in Oakland covering Spanish and Mexican California land-grant history — primary-source colonial and rancho-era social history.

Interpretive center on Upper Newport Bay estuary — covers coastal wetland ecology, migratory birds, and estuarine biology.

Placer County history museum in Auburn's historic courthouse — covers Gold Rush, mining, and Northern California settlement history.

Community nature center with trails and live animals — California foothill ecology, native plants, and natural history observation.

Los Angeles County nature center and canyon park with trails and live-animal exhibits — covers local geology, oak woodland ecology, and California gold rush history.

Public planetarium in Torrance — astronomy, celestial mechanics, and sky-science programming for school-age learners.

Planetarium facility in Fresno — covers astronomy, Earth's position in the solar system, and light/optics concepts.

National memorial to the 1944 Port Chicago munitions explosion — covers WWII home-front history, racial segregation in the military, and labor civil rights.

Preserved 19th-century California rancho that inspired Helen Hunt Jackson's Ramona — covers Spanish/Mexican land-grant history and California statehood era.

California State Parks nature and history center at Waddell Creek covering coastal redwood ecology, migratory wildlife, and Costanoan heritage.