Bam!  Body and Mind
http://www.bam.gov/
Got a question about fitness, disease, peer pressure?  These games are from the Centers for Disease Control and Prevention

Batter's Up Baseball
http://www.prongo.com/math/addition.html
Batter's Up Baseball is a math game that is played like real Baseball. When the math game starts you will see the visitors score on the screen. Your goal is to beat the visitors score and win the baseball game.

European Map Scramble
http://prairiehome.publicradio.org/features/hodgepodge/20010300_europe/scramble/scramble.html
See if you can put Europe back together again.

Funbrain.com
http://www.funbrain.com
Play games like Math Baseball, Grammar Gorillas, Where Is That?, Stay Afloat, One False Move, MathCar Racing.

GeoNet
http://www.eduplace.com/geonet/index.html
This game is a great way to learn about geography and history

GeoSpy
http://www.nationalgeographic.com/geospy/
Check out National Geographic's newest game that tests geographic knowledge by challenging you to identify continents, countries, states, and provinces against the clock

Learning Planet.com
http://www.learningplanet.com/stu/kids0.asp
Lunar adventure, Rats, Detective Shell's Word Search, Mr. Elephant's Memory, BrickBall.

Magic School Bus
http://www.scholastic.com/magicschoolbus/games/index.htm
Enjoy the Magic School Bus books?  Here's their official website full of games and activities.

Nutrition Cafe
http://exhibits.pacsci.org/nutrition/nutrition_cafe.html
Where nutrition information is fun!

Primary Games.com
http://www.primarygames.com/
Fun activities from language arts, math, social studies, and science.  Includes coloring pages, games, stationery, crafts, and more.

Triviaplaza
http://www.triviaplaza.com/index.html
Music, literature, movie, science and geography quizzes.

Where is that?
http://www.funbrain.com/where/
Fun geography game where you must identify countries, states, and capitals from maps