Classified for credit

19th-century Missouri River town preserved as a historic district — covers westward expansion, frontier commerce, and antebellum social history.

Preserved 19th-century Missouri River town on the Santa Fe Trail with a visitor center, historic buildings, and ranger interpretation of westward expansion.

Preserved 19th-century farmstead and museum in Gladstone, MO — covers pioneer agriculture, rural Missouri history, and period farm life.

Audubon-managed wetland visitor center on the Mississippi River — migratory bird ecology, riparian habitat, and conservation biology.

Missouri Department of Conservation area with wetlands, upland fields, and forest — supports wildlife management, habitat ecology, and hunting/fishing conservation education.

Collection of antique and classic automobiles — covers the history of American automotive manufacturing and industrial design.

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

Civil War battlefield site with preserved earthworks — covers Western Theater military history, tactics, and Missouri's role in the conflict.

Civil War battlefield and historic site covering the 1864 Battle of Pilot Knob — primary-source military history and Missouri's role in the Trans-Mississippi war.

Contemporary art center with rotating exhibitions — supports visual art analysis and art history for middle and high school students.

Heritage railroad offering steam and diesel excursions — covers railroad history, industrial technology, and regional transportation development.

State park nature center at a spring-fed trout stream — covers Ozark spring ecology, fish biology, and Missouri watershed science with interpretive exhibits.

Big Cat Country habitat at the Saint Louis Zoo features lions and other large felids — supports zoology, predator ecology, and African savanna biology.

Hands-on petting zoo and educational animal park — introduces animal science, zoology basics, and animal husbandry to younger learners.

Missouri state park on an oxbow lake along the Missouri River — wetland ecology, migratory bird observation, and floodplain geography.

Federal refuge along the Missouri River floodplain — covers bottomland ecology, migratory wildlife, and river biology.

State park protecting one of Missouri's largest remaining lowland forests — supports old-growth ecology, tree identification, and wetland biology.

Ozark state park along Big Sugar Creek — covers Ozark ecology, stream biology, and native plant and animal identification.

Preserved 1800s grist mill and covered bridge on the Whitewater River — covers 19th-century milling technology, water power, and Missouri frontier settlement.

Hands-on children's museum in the Missouri Bootheel — supports early literacy, numeracy, and basic science concepts through interactive exhibits.

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

Ozarks stream corridor state park in Missouri — covers Ozark watershed ecology, stream biology, and native Ozark flora and fauna.

Missouri conservation area with woodland and wetland habitats — supports field study in native plant ecology, wildlife biology, and outdoor education.

Missouri river-bluff state park with forested trails along Meramec River — riparian ecology, geology, and outdoor physical education.