When Wanda's little brother accidentally port-a-shrinks Ms. Frizzle and the kids, they end up trapped in a bathroom with no way out. By using the materials at hand, and some very constructive ideas, they're soon building hair-roller towers and Band-Aid bridges as they discover something surprising-- the power of improvising!

Contains four episodes that follow Ms. Frizzle and her class on their science adventures aboard the magic school bus, including a dive into oceans and wetlands.

In a Pickle: Topic: Microbes; 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? ; Meets Molly Cule: Topic: Molecules; 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. ; Makes a Stink: Topic: Smell; Flora Whiff, the famous expert on...

Nick Jr. introduces preschoolers to the exciting curriculum of Science, Technology, Engineering and Math (S.T.E.M.) that is a hot topic for parents and educators! Join your favorite Nick Jr. friends from Paw Patrol, Bubbles Guppies and more for exciting adventures and lessons in problem-solving and everyday technologies ₆ perfect for jump-starting young imaginations and developing inquisitive minds!