Squares and Square Roots

Matching games
http://www.quia.com/mc/65631.html

Squared Riddles -
http://www.rhlschool.com/math5n10.htm

Root Jeoparday -
http://teachers.sduhsd.k12.ca.us/abrown/Activities/Jeopardy/RootJeopardy.htm

Square Root Activity -
http://hotmath.com/hotmath_help/games/numbercop/numbercop_hotmath.swf