1 Frizzle of the Future -- Arnold worries that a new "Ms. Frizzle" will change the class' "ecosystem".
2. Pigs in the Wind -- The kids learn about wind while working on a performance of The Three Little Pigs
3. In the Swim -- The kids become tiny fish
4. The Battle for Rock Mountain -- Tim creates a comic book which features "Weatherman" vs. "Captain Rock Man"
5. The Magnetic Mambo -- The kids go sub-atomic to explore magnetism
6. Carlos Gets the Sneezes -- A pet rat makes Carlos sneeze
7. Hides and Seeks -- Dorothy Ann applies animal camouflage to a school-wide game of hide and seek.
8. Three in One -- The kids learn about water in its three basic forms
9. Space Mission: Selfie -- Keesha's selfie in outer space has unintended consequences
10. The Tales Glaciers Tell -- Dorothy Ann must give a public presentation on the birth of a glacier
11. Ralphie Strikes a Nerve -- The class builds a giant robot
12. Monster Power -- Arnold investigates alternative power sources while camping out with the class
13. Dorothy Ann and the Deep Blue Sea -- The bus turns into a submarine to help the class retrieve Jyoti's locket