The Invention Hunters travel the globe in their flying museum collecting the world's greatest inventions! This time, they've landed in a kid's backyard, and these silly scientists think they've stumbled on incredible specimens, from umbrellas and lipsticks to coins and rockets. But what they really discover--with a kid as their guide--is how electricity and magnetism powers lamps, batteries, and even toasters! Using simple explanations and diagrams and a heaping helping of humor, the Invention Hunters make the perfect companions for curious kids who are ready to learn about science, physics, engineering, history, and more.