Chemistry or physical science fledglings get comfortable identifying acids and bases with a variety of pH indicators. They discover that different indicator solutions have different ranges, practice testing soil acidity, and use antacids...

High schoolers examine the wars the United States was involved in between 1898 and 1945. In groups, they determine the causes and effects of each war and how each war changed the way the United States handled their foreign affairs. As a...

Students explore the Constitution, the convention and the Bill of Rights with a wide variety of on-line activities including the framers, primary sources, court cases and games.