The kids from Ms. Frizzle's class learn lessons about why objects float or sink when they board the Magic School Bus--tranformed into a bus-boat--to investigate a report of a monster living in Walker Lake.
A clever mouse uses the threat of a terrifying creature to keep from being eaten by a fox, an owl, and a snake--only to have to outwit that creature as well.
Illustrations and text help define four thousand words in both English and Arabic, with questions and exercises, story pages, a verb guide, and indexes.