编辑推荐 Teach your child about the basics of sound using this amazing educational resource. The basics of sound is one of the fundamentals of physics. If this subtopic will be understood, then it will be easy for your child to understand physics as a whole. Use this book as either an introduction to the subject or as a reviewer. Either way, your child will definitely love this book
作者简介 Baby Professor: - "Baby Professor showcases a collection of subjects that are educational for kids to help them learn how to do something themselves, exactly how something is done or how it came about. Children love to learn through attractive visuals and Baby Prof. is ideal to get your child the head start he or she needs for the future. Our Motto - "Learning is Fun, so let's Make it Fun to Learn"."
