The president of Kprshtskan is plotting to infiltrate the science fair at Hubble Middle School in Maryland in order to take over the United States government, but when Toby Harbinger, an ordinary student, makes up his mind finally to win the fair, the terrorists' plans go awry.

Beatrix wins the school science fair every year because she uses magic to cheat, but this year her un-magical twin Olive is convinced that her own project on molds will win--until a fight over space upsets both projects and turns Olive's mold into a stinky, moldy blob monster which is alive, growing, and threatening to overwhelm the school.

Two mice, Pearl and Wagner, work together to build a robot for their science project.

Humphrey, the pet hamster of Classroom 26, is helping Richie with a science project, but Richie's feisty puppy gets in the way.

Cash, Fitch, and Bird Thomas are three siblings in seventh grade together in Park, Delaware. In 1986, as the country waits expectantly for the launch of the Space Shuttle Challenger, they each struggle with their own personal anxieties. Cash, who loves basketball but has a newly broken wrist, is in danger of failing seventh grade for the second time. Fitch spends every afternoon playing Major Havoc at the arcade on Main. And Bird, his twelve-year-old...

Pete and his friends build a volcano for the school science fair but worry that their project won't compare to their classmates' work.

Hope Roberts is a confident eleven-year-old girl who plans to be an astrophysicist, and who loves swimming, Galaxy Girl comic books, her best friend Sam, and her two rescue dogs (not necessarily in that order); but then she starts middle school, and suddenly she cannot seem to do anything right--even science club is a problem because she and another girl, Camilla, get stuck with the boring part of the science project that they suggested, but Hope...