TY - BOOK AU - Winterberg,Jenna AU - Bradley,Timothy TI - Sound Waves and Communication T2 - Physical Science U1 - 534 23 PY - 2016///] CY - Huntington Beach, CA : PB - Teacher Created Materials, KW - Sound KW - Juvenile litersture KW - Sound-waves KW - Juvenile literature N1 - Includes index; "Beep, beep, beep! Whirrrr. From loud and annoying to peaceful and relaxing, sounds are an ever-present part of life. Sound not only helps us send messages to one another, but also tells us about our world."--; Grades 4 to 6 N2 - "Rub your hands together. The quicker you move them, the warmer they feel. This is from friction and the movement of energy. Although energy may change forms, it cannot be created or destroyed. But where does the energy go?"-- Provided by publisher ER -