"Field trip! It's early April, and Miss Mingo's class is hiking up to the local observatory to learn about weather. Alligator's mother is along for the day, and a new student, Groundhog, joins Hippo, Panda, Frog, and the others on what they hope will be a "perfect weather" day. But weather can be changeable as the quirky critters from Miss Mingo's room find out all too soon."--Dust jacket.
