This book tells about kitchen chemistry.

Everybody agrees that mold is just disgusting, until the class goes on a field trip inside a rotting log. They discover that all the dead-looking stuff is actually alive...and it's pretty neat after all. Join the class on their "rotten" adventure, and learn about how nature recycles through decomposition.

Oh, no! Wanda's best friend, Bella the bullfrog, is missing. The class wants to help look for her. Ms. Frizzle says, "The best way to find a frog is to be a frog!" So, the kids take a ride on the Magic School Bus. Join them as they shrink to frog size and learn all about animal habitats!

Ms Frizzle's class takes a trip into a nearby plant to find out what plants eat. Join the gang as they get to the root of the matter, and learn all about a plant's private food factory.

Ms. Frizzle's class decides to make a movie about ants for the school science fair. They follow an ant all the way into an anthill, and discover that it's crawling with activity. Join Ms. Frizzle and the Magic School Bus gang as they learn how ants work together.

It's beach day, and the whole class is excited. Everyone except Arnold and Keesha, that is. They forgot their report on two beach things that go together. All Arnold and Keesha have is a tunafish sandwich and some smelly green pond scum. What could those two things possibly have in common? "The best way to learn about something is to jump right in," Ms. Frizzle announces. A second later the bus dives right into the ocean! Come on an underwater adventure and learn about food chains.

Tiny people use heavy equipment to make a birthday cake.