The Jefferson Lab offers all kinds of kids' games online, everything from question games to math magic tricks. The Jefferson Lab exists to provide state-of-the-art scientific facilities for scientists to discover and apply advanced technology. Along the way, this facility has branched out to inspire the scientists of tomorrow. The Lab offers a comprehensive website full of information for adults, teachers and students of all levels.
For younger children (K-5), ABC-ya touts itself as where education and technology meet. Offering multi-level games, this site incorporates fun ways to practice different math skills. You can often find a game to illustrate a particular topic such as "less than, greater than, or equal" for students who are having difficulty grasping a particular topic.
Another skill building site is 4Kids.org. Here kids can try to work with penguins, coconuts and even play word invasion. A nice way to supplement an afternoon of studying, these computer games teach skills while keeping kids interested.
Consider the printable games at Dr. Mike's Math Games for a game you can do away from the computer. Here you can find everything from worksheets to board games to dominoes. The games are free and printable, so the family can play together or you can take them on the road.
A neighborhood scavenger hunt might be right up your alley if you want to get kids up and moving. Put together a series of math problems or science questions. A correct answer gets the kids the next clue that leads them on an adventure of the neighborhood or a park. This can even be a race game between multiple players.
Totally Gross teaches by engaging kids in comedic ideas behind scientific facts. By teaching children to look at science differently, at the whys behind the facts, children take away lessons they do not forget. Working in information about cannibals and snot tends to make children laugh. Then they go from hysterics to remembering. When you learn that snot keeps your lungs clean, you are likely to remember how. You stretch your slime to the end and complete a lab experiment to win.