When Heidi is paired with Stanley, her worst enemy's best friend, for the Brewster Science Fair and she suddenly starts getting notes from a secret admirer, she tries to use magic to discover the note-writer's identity.

Seventh grader Wendy Toledo knows that black holes and immigration police have one thing in common: they can both make things disappear without a trace. When her family moves to a new all-American neighborhood, Wendy knows the plan: keep her head down, build a telescope that will win the science fair, and stay on her family's safe orbit. But that's easier said than done when there's a woman hiding out from ICE agents in the church across the alley,...

When Ella Mentry School holds a science fair, Dr. Snow arrives to help A.J. and his friends conduct their experiments.

Amelia is assigned to a group science fair project.

For the first time in years Eerie Elementary is planning a science fair, which may not be a good idea in a school which is alive and out to get the students--but when Sam and his friends find a book of experiments that contains all of Orson Eerie's notes, it may turn out to be the key they need to finally understand the mad scientist.

Have you ever wondered how other people see you? Have you ever been confused about how you see yourself? Then this book is for you!

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.

As the judging of his class's science fair approaches, Otis has trouble even thinking of an idea but once he has built a bird feeder he is determined to make some good observations, no matter how long it takes.

Keith, tired of being accused of farting up a storm at school, creates a science fair project that turns the foul smell of human gas into something pleasant, but his plans backfire when his project causes a stink at home and at school.

Lily, Daisy, and Violet Divine, triplets, have different interests and like to do things on their own, but they pull together when they need to, whether to find out their grandparents' secret, create a good science fair project, or teach their new dog to stop chewing.