The Magic School Bus Season 3 Episode 11 - The Magic School Bus in the Rainforest Episode Title:The Magic School Bus in the Rainforest.Episode Description:The class has decided to give the Friz a present for Earth Day, a cocoa bean tree in the Amazon (as cocoa beans are used to make chocolate). The day just happens to be the day the first shipment reaches them, but for some reason, the tree has produced no cocoa beans. They go to the rainforest to find the reason and Ms. Frizzle makes Tim and Dorothy Ann "RFI"s (RainForest Investigators.) Ms. Frizzle's tree is in a patch of the rainforest controlled by Inspector 47, who talks with a strong accent and runs around the rainforest in a white suit. He is very proud that he got rid of the mud in his patch of the rainforest, however the class finds out at the end that the mud was what caused the absence of cocoa beans. The mud holes were where the insects that pollenated the cocoa pods lived and it is revealed that Inspector 47 covered the rainforest floor with artificial turf. They explain this to him and he decides to "rip up this filthy artificial turf with my bare hands."