Teen Science Fair

The Teen Science Fair is a demonstration of science projects and inventions.

Season one
Shaggy Rogers, Scooby-Doo, and Scrappy-Doo entered the fair with a pizza-making machine. They got caught up in the demonstration of another invention and Shaggy and Scooby had their minds swapped.

Appearances

 * The Richie Rich/Scooby-Doo Show
 * Who's Scooby-Doo?