Sound is everywhere This book uses real-world examples to bring the concept of sound to life in an approachable way. Clearly-written text draws in readers with concrete examples involving familiar, everyday things, from a train whistle to a thunder clap. The book covers the history of and key figures in the understanding of sound, including Pythagoras and Galileo. Major concepts covered include sound waves, frequency, amplitude, ultrasound, sonar, echoes, the Doppler effect, sonic booms, cochlear implants, noise pollution, echolocation, and decibels. Full-color photos, a glossary, an index, sidebars, primary source documents, and other creative content enhance the book. It also includes prompts and activities that directly engage students in developing the reading, writing, and critical thinking skills promoted by the Common Core standards. This well-researched title has a credentialed content consultant and aligns with Common Core and state standards. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.