PBS
Pbs Kids: Go!
This educational tool is for children in grades 3-5. Provides information on art, music, language arts, science, social studies, and more using games and videos.
Other
Funology: The Science of Having Fun
See what the "science of having fun" is by learning jokes and "wacky facts", playing games, and trying magic tricks and simple recipes. Great ideas for enjoying science with classmates, friends, and family.