Ms. Frizzle's class explores the process of photosynthesis and discovers what plants need to flourish after the Magic School Bus turns Phoebe into a beanstalk.

Filming Keesha's pet ant for a science project fair, the students in Ms. Frizzle's class take a journey into the lives of ants during which they learn about the ant community.

When Ralphie comes down with a bad cold, he is unable to host the Frizzle News Network television show on health, but Ms. Frizzle and the magic school bus save the day when they take a ride through his germ-infested body.

The students of Ms. Frizzle's class embark on another journey when the Magic School Bus tours a decomposing log that introduces the latter end of the life cycle and teaches readers that there's more to rot than meets the nose.

The magic school bus takes a close look at the inside of a hurricane.

Rainbow Fairies Raquel and Cristina have trouble finding Celeste, the blue fairy, at the beach.

Clifford the small red puppy valiantly tries to celebrate Halloween with Emily Elizabeth, but he is too small to wear a mask or dress up as a scary ghost, and decides to climb into a pumpkin and turn it into a barking jack-o'-lantern.

Lindy finds a ventriloquist's dummy and has fun learning to make him move and talk. Kris is jealous, and decides to get a dummy of her own. Then nasty evil things begin to happen. No way can a dummy be causing all the trouble. Or is there?

Emily Elizabeth can't find anything special enough for show-and-tell, until Clifford gives her an idea.

La fiesta anual del edificio es mañana y Ronnie Annie está impaciente por llevar el pastel de tres leches que ayudá a su abuela a preparar. Sin embargo, a pesar de que debia resguardarlo de sus hambrientos familiares, ¡el pastel desaparece! Ronnie Anne y su meor amiga, Sid, asumen el caso, pero ¡la pista se enfria y nada sale como esperaban! ¿Podrá Ronnie Anne salvar el pastel --y su reputación-- a tiempo para la fiesta?