Ben's Guide: Our Nation http://bensguide.gpo.gov/k-2/nation/index.html
Ben's Guide: Our Government http://bensguide.gpo.gov/k-2/government/index.html
Ben's Guide: United States Symbols http://bensguide.gpo.gov/k-2/symbols/index.html
Ben's Guide: The Three Branches of Government http://bensguide.gpo.gov/3-5/government/branches.html
The Great Seal http://bensguide.gpo.gov/3-5/symbols/seal.html