Social Studies
http://www.proteacher.com/090004.shtml
http://www.arcticcircle.ca/Baffin/Iqaluit/
Math
http://www.aplusmath.com/cgi-bin/games/addpicture
http://www.bbc.co.uk/schools/laac/numbers/chi.shtml
Language Arts
http://www.teachervision.fen.com/reading-and-language-arts/games/5831.html
http://classroom.jc-schools.net/basic/la.html
http://www.globalclassroom.org/ecell00/javamath.html
Science
http://www.bbc.co.uk/schools/scienceclips/ages/8_9/solid_liquids.shtml