Inspired by real-life makers Ada Lovelace and Marie Curie, this beloved #1 bestseller champions STEM, girl power and women scientists in a rollicking celebration of curiosity, the power perseverance, and the importance of asking "Why?" Don't miss Ada's further adventures--with her friends Iggy Peck and Rosie Revere--in the instant New York Times bestseller Rosie Revere and the Raucous Riveters, the first all-new chapter book starring The Questioneers!...

Marsha tries scientific experiments to attract friends she can invite to her birthday party, but concludes that the best way to draw others is by being herself.

Jessie wants her science fair project to make a difference. So when she gets the chance to test a local creek for pollution, she can't wait to get started. But when things start going wrong with her experiment, Jessie and her siblings don't just have an experiment to investigate, they have a mystery to solve!

Princess Pippa's latest experiment to create a better tasting pea goes awry and she must figure out a way to get the kingdom back to normal.

Concerned that the fundraisers for the school art and music departments are not doing well, Franny K. Stein creates in her laboratory/kitchen an irresistible muffin recipe.

To get her best friend back, anxious and inventive eleven-year-old Maple performs a scientific experiment to uncover the secret to becoming fun.

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.

Newton the squirrel and his sister, Curie, conduct experiments based on what they hear through a classroom window, making simple machines to learn more about how the world works and to help their neighbors. Includes author's notes and glossary of scientific terms.

Cece and her friend Isaac conduct an experiment to see if Cece's dog, Einstein, will eat vegetables. Includes glossary and activities using the forces of push and pull.

"When Tom's big brother decides to become an Evil Scientist, his first experiment involves dunking Frankie the goldfish into toxic green gunk. Tom knows that there is only one thing to do: Zap the fish with a battery and bring him back to life! But there's something weird about the new Frankie. He's now a Big Fat Zombie Goldfish with hypnotic powers...and he's out for revenge!" -- Back cover.