Below is a list of fun, educational links. Happy surfing
Math
Math is Fun Illustrated Definitions
Brain Bashers games and puzzles
Figure This - Math Challenges for Families
Science
NASA (you can also access the kids club area though the Education heading)
The Thrill of Flight Topic 1 (Famous Aviators)
The Thrill of Flight Topic 2 (The Air Out There)
The Thrill of Flight Topic 3 (Airplanes)
The Thrill of Flight Topic 4 (Helicopters)
The Thrill of Flight Topic 5 (Gliders)
Social
Current Events (written for youth)
Alberta Legislature Student Zone
Municipal Affairs - Local Government for kids