The 3rd book in a nonfiction early-reader series based on the new Ada Twist, Scientist Netflix show! How does a cake bake? What's the difference between baking soda and baking powder? And why is it so important to measure the different ingredients in a recipe? Ada Twist, Scientist: The Why Files is the perfect nonfiction resource for all these questions and more. Based on the bestselling series and the new Netflix show, this nonfiction series is perfect for the youngest scientists of tomorrow, as they learn along with Ada. Designed in a scrapbook format, these books combine art from the show, illustrations, and photography to bring simple science concepts to life.