Always the caring soul, Phoebe goes on a crusade to save the animals and plants of the desert -- and discovers how well they take care of themselves.

The class is thrilled about its upcoming concert at the Sound Museum -- until they discover the spooky mansion is more of a thrill than they bargained for. With Carol Channing as Cornelia C. Contralto.

The Magic School Bus goes into show business when Keesha directs a movie about social animals for the school science fair.

Ralphie wants to serve salmon at the annual school picnic, but he can’t find any at his favorite fishing spot. But when the kids are “Frizzled” inside a salmon-bus they have an uncontrollable urge to head upriver.

When Wanda’s favorite singer, Molly Cule comes to town and she chooses Ms. Frizzle’s class to wash her famous car, the kids discover how to clean the car down to the very last bit.

Phoebe is chosen to give a slam-dunk exhibition during the big basketball game. When she finds she can’t jump high enough because gravity is “pulling on” her, Ms. Frizzle takes the class into space and turns the Bus into a planet—with adjustable gravity!

It’s Valentine’s Day and the class is selling lightbulbs. When they stop at Ms. Frizzle’s house to sell her one, they find that her battery-operated doorbell doesn’t work.

To help them understand how the Earth makes islands, Ms. Frizzle presents the kids with an island that hasn’t been discovered yet!

Ms. Frizzle takes the class on a dinosaur dig, courtesy of her old school chum, paleontologist Dr. Carmina Skeledon, and travels 67 million years back in time!

When Dorothy Ann warns the kids there’s an asteroid headed straight for their school, Ms. Frizzle arranges a field trip into space.

It’s the night of the rock lovers’ annual Granite Awards, and Arnold is about to become the first kid to win the Rocky Award. He’s so excited, all he’s been able to eat for weeks are “Seaweedies.” When he arrives for the big event, he’s totally nervous and totally... orange!

When the kids see Horace Scope (Dabney Coleman) on the Star Shopping Network, they decide to buy Dorothy Ann a real twinkling star for her birthday.

When Ms. Frizzle invites the class’ parents in to see that their kids are learning about bats, Ralphie and the gang are convinced The Friz is a vampire! With Tyne Daly as Ralphie’s mom; Eartha Kitt as Keesha’s grandmother; Elliot Gould as Arnold’s dad; Dana Elcar as Phoebe’s dad; and Edward James Olmos as Carlos’s dad.

Shrunk inside Tim’s model airplane, the class goes on a high-flying field trip to find out how things fly.

Keesha and the class return from vacation to find her prize cucumber has turned into a pickle! Could the Mike Robe gang be to blame?

There’s a monster in Walkerville Lake! Wanda competes with Gerri Poveri, a TV reporter whose ratings are sinking, to be the first one underwater.

The class needs a new mascot for its soccer team. Phoebe suggests butterflies, but everyone thinks they’re wimpy—until The Friz flutters in!

The school district’s Vehicle Maintenance Inspector, Junkett is about to condemn the Magic School Bus!

The class is ready to plug in their “Double-Trouble Wheel of Wonder” at the town carnival, when they discover all the electrical outlets are taken.

Liz has gone off to a mysterious place called “Herp Haven.” Thinking she’s in trouble, the class rushes to Herp Haven, where they turn into reptiles. With Michael York as Herpst.

Arnold and Wanda are due to give a report on the town waterworks. But Ms. Frizzle thinks it's field DRIP time! She turns the bus and class into water drops and the kids evaporate, condense, become rain and rush by river into the ocean. After several trips through the water cycle, they're ready to turn back into regular kids. But the magic key that will get them out of the cycle is locked in the school bathroom! Trying to work their watery way into the bathroom, the kids go through the town waterworks and see how water is purified. Can they get to school through bathroom pipes? Or are they stuck in the water cycle forever?

Ms. Frizzle takes the class on a field trip to R.U. Humerus's Body Shop. They learn how bones, muscles and joints all work together to help us move.

Arnold's know-it-all cousin Janet drives the kids crazy when she joins Ms. Frizzle's class on a field trip and gets them lost in outer space!

Arnold's so excited he doesn't have to go on a field trip! But when he accidentally swallows his miniaturised class, he becomes the field trip!

Arnold and Keesha are in trouble when they forget to bring in their assignment on "two things that go together."