0. freerice.com (I had to add this one, too)

.5.  Planet Earth - science 

1.  www.wegivebooks.org

2.  www.storylineonline.net

3.  Keyboard Fun!

4.  Seussville

5.  I Spy!

6.  Recycling Game!

7.  Memory Game

8.  Letter Sounds

9.  Word Hunt

10.  Food and Nutrition games