Did you know friction is what causes glass to make that lovely clinking noise? In this book, readers learn what makes glasses "sing" and test out different sounds all while learning about the experimentation process and physics! Curious young scientists can try out this or any of the other nine experiments presented by Scientific American in this book to explore some amazing physical science concepts they may have encountered in class. Step-by-step instructions, thoughtful questions, and even experiment extras guide readers to fascinating results!