The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. Phoebe is to participate in a slam-dunk during contest at half time of the big basketball game. The problem is Phoebe can't jump high enough. "If only gravity didn't pull on me." she moans. Never one to be tied down, Ms. Frizzle sends the class into space and turns the Bus into a planet — with adjustable gravity. The class finds basketball's a snap with low gravity and a riot with no gravity at all, but when there's way too much gravity, things get really heavy.