This site has information about the atomic bomb which was dropped on Hiroshima. Pictures of Hiroshima after the bomb and the mushroom cloud are included.

Interactive teaching unit for Grades 5-8 that helps to explain the three branches of government and the the balance of power. Topics covered include balance of government, how a bill becomes a law, the amendment process, the Legislative Branch, the Judicial Branch, the Executive Branch, the President, and the Cabinet. Includes activities, worksheets, puzzles, and games.

This slide and the six that follow it (use the advance button near the bottom of the screen) offer an explanation of each of the three branches of government and the duties they perform, including discussion of the tensions arising from "shared" powers. Written as a unit for middle school, it provides a straightforward view that is useful for upper grades as well. Includes questions for students as they progress through the material.