Readers will learn about how Thomas Edison invented the phonograph in Super Simple Phonograph Projects. Then do the science based phonograph projects like making a voice recorder or a sound wave experiment. This book has a timeline, easy-to-follow steps, how-to pictures, and, best of all, it’s written for kids! Aligned to Common Core Standards and correlated to state standards. Applied to STEM & STEAM Concepts of Learning Principles. Super Sandcastle is an imprint of Abdo Publishing, a division of ABDO.