Episode Title:The Magic School Bus Wet All Over.Episode Description:The class is excited about going to Waterland. Wanda and Arnold are working on a project together and somehow Wanda convinces him to go to the girls' bathroom with her to get water. He accidentally leaves Ms. Frizzle's keys and Liz in the bathroom, and forgets to turn the water off. When they leave to go to Waterland, Ms. Frizzle instead uses a spare key which turns the bus, class and her into water.