Prodigy Math
www.prodigygame.com/play
Nat Geo for Kids (Learn all anout geography and animals)
www.kids.nationalgeographic.com
ABC YA Practice math and reading skills while playing fun games)
www.abcya.com
Highlights Kids (Read, play games, and conduct cool science experiments)!
www.highlightskids.com
Fun Brain (Play games while practicing math and reading skills)
www.funbrain.com
Into the Book (Go "into the book" to play games that practice reading strategies)
www.reading.ecb.org