Ada Twist is a very curious girl who shows perseverance by asking questions and performing experiments to find things out and understand the world.

Housekeeper Amelia Bedelia wreaks havoc when she volunteers to help out at the school science fair.

'Kill us all' are the cryptic, chilling words that send Commander Gray Pierce on a search for ancient answers with the help of a very old map when a horrific disease kills every living person, plant, animal, and bacteria within a 50-mile radius of an isolated military research station. And the virus is just getting started.

Mad scientist Frannie K. Stein, determined to be elected class president, uses her Atomic Combiner to create a suit that makes her seem to be whatever a voter wants her to be, but the suit has plans of its own.

Pearl and Wagner, a rabbit and a mouse, work together to build a robot for their science project.

"The Similars are all anyone can talk about at the elite Darkwood Academy. Who are these six clones? What are the odds that all of them would be Darkwood students? Who is the madman who broke the law to create them? Emma couldn't care less. Her best friend, Oliver, died over the summer and all she can think about is how to get through her junior year without him. Then she comes face-to-heartbreaking-face with Levi--Oliver's exact DNA replica and one...

A girl, Zoey, and her cat, Sassafras use science experiments to help a monster with a problem.

A girl, Zoey, and her cat, Sassafras, use science experiments to help a local stream and magical merhorses.

Franny K. Stein is a mad scientist who prefers all things spooky and creepy, but when she has trouble making friends at her new school she experiments with fitting in--which works until a monster erupts from the trashcan.

When her embarrassing middle name is revealed at school, mad scientist Franny K. Stein experiments with time in order to return to the past and give herself a more dignified name.