"Discover the wonders of science with the kids at Elmore Junior High! Class is in session with Professor Gumball in this one-of-a-kind guide to all things scientific. Join Gumball, Darwin, Anais, Miss Simian, and the rest of Elmore Junior High as they unlock the mysteries of the natural world: What is gravity? Why do earthquakes happen? And will becoming a scientist finally impress Penny? Test theories, plan experiments, and discover more about the Amazing World of Gumball!"--Publisher's website.