Spark scientific curiosity with easy-to-find materials. The fascinating field of physics deals with the how and why of non living objects--including so many that figure in kids' everyday lives. It covers what principles are at work when we ride a bicycle, why a balloon floats, and how a refrigerator keeps that bottle of soda nice and ice-cold! And, what physics reveals about light, time, motion, magnetism, and other natural forces plays a part in...