It seems impossible that the tiny parts of the ear allow us to hear birds chirping, music, and someone speaking. Each sound travels through the air and causes the parts of the ear to vibrate. The brain uses this information to tell us what we've heard. That's just the beginning of what this book can teach readers about sound. Detailed, colorful diagrams and simple explanations show readers how echoes work, how sound is recorded, what ultrasounds are, and more. Riddles and pop quiz questions ask readers to consider what they've read, aiding their understanding of these science curriculum topics.