Scramble (From Math Playground, which has a lot of academically helpful games as well:
CBC kid Games (try wake boarding and bmx riding)
The Eyeballing Game (If you think you have a good eye)
Immune Attack –you have to download it to your computer, but it’s a SWEET game!
Google Sky! (see outer space! It works better when you download Google Earth & select Sky, but it works online, too!)
Bounce Balls with your Mouse or Noise Levels!! (totally using this in class next year during group work times!)
Harry Potter (Because it’s just plain awesome)