The classroom is decorated as Dinosaur Land, but Ms. Frizzle-inspired by an archeological dig-craves a more authentic experience. The Magic School Bus turns into a time machine and transports the class back millions of years to an adventure where they learn about dinosaurs, their habitats and diets, and even a Maiasaura nesting ground.

Joanna Cole and Bruce Degen, the author and illustrator of the Magic School Bus books, have collaborated for twenty years, bringing humor and true kidlike curiosity to science and learning. Booklist heralded Ms. Frizzle as "the wackiest, wisest teacher in picture books." Two MSB titles have been named School Library Journal Best Books of the Year, and they have won countless state book awards, from New York to Nebraska.