On a special field trip in the magic school bus, Ms Frizzle's class learn at first hand about different kinds of rocks and the formation of the earth. On a special field trip in the magic school bus, Ms. Frizzle's class learns at first hand about different kinds of rocks and the formation of the Earth.

Ms. Frizzle takes her class back through time to the Triassic period on a dinosaur dig in search of Maiasaura eggs.

Ms. Frizzle takes her class on a field trip to a beehive in her magic school bus.

When Arnold, one of Ms. Frizzle's students, finds a small foxlike animal with huge ears in the lost and found, he and the rest of the class join in the search for the animal's habitat. They visit six different habitats: the Arctic, the North American temperate forest, the African grasslands, the Amazon rain forest, wetlands, and desert.

When Ms. Frizzle and her student Arnold follow an underground passage beneath Craig's Castle Shop and find themselves in the middle of a siege of a 12th century English castle, they learn a great deal about both castles and the Middle Ages.

"When Arnold wishes he had more information for his family tree, Ms. Frizzle revs up the Magic School Bus and the class zooms back to prehistoric times. First stop: 3.5 billion years ago! Luckily Ms. Frizzle has a plan, and the class is right there to watch simple cells become sponges and then fish and dinosaurs, then mammals and early primates and, eventually, modern humans. This is the story of a species, of our species, as only Ms. Frizzle can...