Classified for credit

Iowa state park with two glacially formed lakes — supports ecology, freshwater biology, and outdoor PE curriculum with trails and fishing.

Iowa state recreation area around Palo Reservoir — supports freshwater ecology, wildlife observation, and physical education.

Small Iowa nature center with trails and wildlife habitat — local bird and mammal ecology, wetland biology, and naturalist skills.

Iowa state park with lake, wetlands, and trails — covers aquatic ecology, bird habitat, and outdoor recreation.

Iowa nature center near Cresco serving northeast Iowa's prairie and woodland ecosystems — supports plant and wildlife identification and regional ecology.

Working blacksmith shop and wagon museum — covers 19th-century metalworking, mechanical engineering, and agricultural history.

Council Bluffs, IA railroad museum in a restored depot with historic rolling stock — covers westward expansion, rail technology, and American commerce.

Iowa state park centered on a glacially formed lake — lake ecology, migratory waterfowl biology, and Iowa glacial geology.

Iowa State University botanical conservatory with butterfly garden and themed plant collections — plant biology, entomology, and horticultural science.

Iowa state park on a shallow glacial lake — supports study of glacial lake formation, prairie wetland ecology, and migratory waterfowl habitat.

Iowa state park with lake, swimming, and trails — freshwater ecology and outdoor recreation.

Tudor-revival estate (1923) with period furnishings and decorative arts — covers Iowa history, early 20th-century architecture, and material culture.

Community museum with a functioning planetarium — covers astronomy, celestial mechanics, and the solar system in a domed projection theater.

Historic sawmill museum on the Mississippi — covers timber milling mechanics, 19th-century lumber industry, and applied physics of water-powered machinery.

National heritage area documenting Midwest agricultural and industrial history — farm technology, food production history, and rural American economy.

Municipal art center with permanent collection and rotating galleries — supports visual art study and regional artistic heritage.

Sioux City public museum covering regional Native American history, Missouri River settlement, and Great Plains heritage.

Iowa state park with wooded ravines and a lake — freshwater ecology, forest biology, and outdoor physical education.

University of Iowa art museum with permanent and rotating fine-art collections — supports art history, formal analysis, and cross-cultural visual literacy.

State-operated Iowa history museum with primary-source artifacts covering Iowa's territorial, pioneer, and 20th-century political history.

State historical society with Iowa history collections — covers primary-source research skills, Iowa political history, and Midwest social studies.

Working steam engine museum demonstrating 19th-century mechanical engineering, thermodynamics, and the role of steam power in agricultural history.

Missouri River steamboat history museum in Iowa covering 19th-century river commerce, navigation, and westward expansion.

Small children's zoo with domestic and exotic animals — introduces basic zoology and animal care concepts for early learners.