When Jeremy is entrusted with Professor Twitchett's creation, a jackalope, he must find a way to keep it safe from the government agents who want it for their own purposes.

At a science fair competition, Zucchini is angered by Mr. Farnsworth's referring to him as lunch, and plots revenge. Includes a section explaining the scientific terms used in the book.

It's the Science Fair, and the second grade is all over it! Some kids are making man-eating robots. Some kids are holding their breath for a very, very long time. Some kids are doing interesting things with vacuum cleaners. The theme, obviously, is global warming. But what should Ivy and Bean do? Something involving explosions? Or ropes? Something with ice cubes? Or maybe ... maybe something different.

When all the second grade students must enter the science fair, which has global warming as its theme, best friends Ivy and Bean team up to create an unusual project.