Sports days are full of energy! That's what Volt, Zeb, Pixel, and Cardio learn in this exciting guide to physics. The fundamentals of energy are explained to readers as these robots spend the day racing, snacking, climbing, and dancing! With the help of colorful and friendly robots, physics becomes fun for young readers. The bright and cheerful illustrations, interactive elements, and activities take a familiar elementary science concept and present it in a fresh way that even reluctant readers are sure to enjoy.