Links

Decode the Code Online code breaking challenge game.

Exploratorium Fun site for quick Science type challenges.

Fun Brain Links to all sorts of Math and Language Arts related games.

eSchool Online Some interesting Science type activities.

Mensa games Want a true challenge? Try the online games from MENSA.

Logic Puzzles Difficult puzzles that will test your brain and patience.

Brain Teasers Interesting link to brain teasing puzzles. Some solutions do not display.

Brain Food Decent selection of challenging word / logic puzzles.

Sheppard Software 3 different types of quizzes: vocabulary, math and trivia.

Nrich Math For all you math folks out there, monthly puzzles of varying difficulties.