University of Illinois
University of Illinois Extension: All Star River Explorers
An interactive site to teach students how rivers are formed, how they change, and why they are important. Cross-curricular activities in language arts, math, science, social studies, and art, some of which include worksheets to download,...
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Major John Wesley Powell
(1834-1902) U.S. soldier and geologist who explored the Wild West.