National Geography Bee http://www.nationalgeographic.org/geographybee/
National Geographic for Kids http://www.nationalgeographic.com/kids/
Liberty's Kids http://libertyskids.com
National Archives http://www.archives.gov/
Constitution for Kids http://www.usconstitution.net/constkids4.html
Helpful Site for Time Capsule Project http://www.infoplease.com/yearbyyear.html
Cultural history of different decades http://kclibrary.nhmccd.edu/research.htm
History of Fashion by decade in the 20th Century http://www.vintageblues.com/history_main.htm
Tracking Hurricanes http://www.miamisci.org/hurricane/instructions.html
The Heart http://www.fi.edu/biosci/heart.html
Let's Learn About Your Heart http://www.mplsheartfoundation.org/kids
Learn About Electricity http://www.ngridenergyworld.com/esw/index.html
Hurricanes http://www.fema.gov/kids/hurr.htm