Fifth-grader Anna is concerned that her baby sister Kaylee, adopted from China three months ago, is not thriving so she and her best friends, Laura and Camille, create a science project that may save the day.

Freddy sets up an experiment for his science fair project, but after his mother accidentally throws it away, he has to come up with a solution that will save the day.

After winning the science fair with the giant robot she has built, a little girl realizes that there is a major problem.

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.

A boy sends off for "Professor Swami's Super Slime" to use as his science fair project and then has to cope with the funny disaster that follows.

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.