In this episode of Hook Book Barrel we explore the fascinating world of sound waves—how vibrations make sound, how those waves travel through air, water and solids, how our ears hear them—and why protecting our hearing matters. Then we pull the book I’ve Never Sawn That Before! by Kristin Blakely (illustrated by Julia Galotta) from the Hook Book Barrel. Join us for fun experiments, listening games and a story that shows how hearing and feeling safe go hand-in-hand.