On another special field trip on the magic school bus, Ms. Frizzle's class learns about the ocean and the different creatures that live there.

A child eagerly welcomes home his new baby brother.

A sister enumerates the joys of welcoming a new baby to the family and the advantages of already being "big."

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! There aren't any people around to ask for directions. 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. It's the longest class...

Ms. Frizzle takes her students for a ride aboard the Magic School Bus and explains in an easy-to-understand manner the scientific facts of global warming and how it will affect the younger generations.

Uses a question-and-answer format to present information about sex for preteens.

Take a ride inside the human body with Ms. Frizzle and the class!

Examines the common house cricket and shows why its body is ideally suited for survival.

When Ms. Frizzle, the strangest teacher in school, takes her class on a field trip to the waterworks, everyone ends up experiencing the water purification system from the inside.