{ "item_title" : "The Physical Phenomena of Sound Introduction to Sound as Energy Grade 4 Children's Physics Books", "item_author" : [" Baby Professor "], "item_description" : "Yes, sound is a form of energy too. In this book, you will study about the basic physical phenomena of sound. What is the source of sound? How does it travel? What are sound waves? And how are sound waves affected by the volume of sound? This book is an excellent introduction to sound as an energy. Buy a copy today.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/54/197/941/1541979419_b.jpg", "price_data" : { "retail_price" : "30.99", "online_price" : "30.99", "our_price" : "30.99", "club_price" : "30.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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