Middle schoolers take a close look at the McClellan-Kerr Arkansas River Navigation system. They study how the Army Corps of Engineers built and monitor the system. Learners discover how a lock and a dam work, and study three benefits of...

Fourth graders examine the basics of bird watching, finding and interpreting bird clues and attracting birds to a particular location or habitat. They go on a birding hike after a lecture on what to look and listen for in the woods.

Students evaluate the role of government in addressing land use and other environmental issues. They analyze the powers, responsibilities, and limitations of elected and appointed officials in the national legislative, executive, and...