The class has to figure out how to turn their bus (a floater) into a sinker so they can solve the mystery of the underwater monster.
Wanda turns the class into a habitat for her frog, but when he jumps out the window she has to rethink what a frog really needs. Explores the world of animal habitats.
The kids from Ms. Frizzle's class learn lessons about the life of salmon when their teacher turns her Magic School Bus into a mechanized fish.
Herry empties his toy chest of everything from accordion to zebra, until he finds his alphabet book.
Big Bird watches all kinds of cars and trucks make deliveries on Sesame Street but none of them brings what he is waiting for--a present from Granny Bird.
The Sesame Street Muppets perform daring circus acts demonstrating such opposite concepts as big/little, up/down, and clean/dirty.