Math websites:
http://www.aaamath.com/
http://www.amathsdictionaryforkids.com/
http://www.tburg.k12.ny.us/mcdonald/mathfun.htm
http://nlvm.usu.edu/en/nav/grade_g_2.html
Social Studies websites:
http://www.netstate.com/states/index.html
http://www.kidsgeo.com/geography-games/usa-capitals-map-game.php