Classified for credit

Major Pacific Northwest aquarium on Seattle's waterfront — marine biology, Puget Sound ecology, fish anatomy, and ocean conservation.

Expanded Seattle Aquarium ocean pavilion on the waterfront — covers Pacific marine biology, ocean ecosystems, conservation science, and tidal zone ecology.

Major inland aquarium housing 32,000+ animals — covers marine biology, ecology, animal behavior, and conservation across freshwater and ocean habitats.

Smithsonian natural history museum with dinosaur halls, human origins exhibit, and gem collections — paleontology, geology, biology, and anthropology.

Smithsonian complex on the National Mall — multiple free museums covering natural history, aerospace, American history, and applied science.

Complex of 19 free museums and galleries covering natural history, aerospace, American history, art, and zoology — broad curriculum coverage across all grade levels.

Smithsonian flagship aviation and space museum with historic aircraft and spacecraft — covers aerospace engineering, physics, and the history of flight.

Large public aquarium on Charleston Harbor — covers marine biology, coastal ecology, and South Atlantic watershed conservation.

NASA's official visitor center adjacent to Johnson Space Center — covers spaceflight engineering, mission history, astronaut training, and aerospace science.

Space Shuttle Atlantis exhibit at Kennedy Space Center — covers aerospace engineering, orbital mechanics, and the history of the U.S. Space Shuttle program.

Smithsonian hands-on invention lab at the National Museum of American History — engineering design process, problem-solving, and invention history.

Kennedy Space Center's Space Station Processing Facility — covers spacecraft engineering, orbital mechanics, and NASA human spaceflight history.

Active fossil dig site with Early Jurassic dinosaur tracks and skeletal remains — paleontology, stratigraphy, and geologic time scales.

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

Major public aquarium inside California Academy of Sciences — marine biology, coral reef ecology, and aquatic adaptations with live specimens.

Steinway piano factory tour showing hand-crafting of concert grand pianos — covers acoustical physics, precision manufacturing, and the science of musical instrument construction.

NASA rocket testing facility with visitor center — covers propulsion engineering, acoustics, fluid dynamics, and the history of the space program.

Smithsonian air and space annex housing hundreds of full-size aircraft and spacecraft — covers aeronautics, propulsion, and spaceflight history.

Underground salt mine with working-level tours 650 ft below surface — geology, evaporite mining, and Kansas Permian Basin earth science.

Large aerospace museum near Omaha housing Cold War-era aircraft and missiles — covers aviation engineering, aerodynamics, and the history of strategic air power.

Museum housing the USS Nautilus (first nuclear submarine) with engineering exhibits — covers nuclear propulsion, submarine mechanics, and Cold War naval history.

Naval submarine museum with a boardable WWII-era submarine — covers underwater engineering, propulsion, sonar, and Cold War naval history.

Major aquarium within Omaha's Henry Doorly Zoo — covers marine biology, aquatic ecosystems, and animal adaptations across freshwater and saltwater habitats.

Large regional science museum with planetarium, fossil hall, and mineral collections — covers earth science, paleontology, astronomy, and physics.