Book is in French A team of experts, educators, and 11-year-olds came together to invent machines that swing, bounce, and spring in ways that only LEGO bricks can. Kids will learn solid building techniques and the physics behind the fun. Each machine forms one step in a customizable chain reaction. One thing leads to another, until ordinary tasks like turning on the light or flipping a coin are accomplished in extraordinary ways! Comes with: 78-page book of instructions, 33 LEGO pieces, instructions for 10 modules, 6 plastic balls, string, 8 paper ramps and other components. Author - Pat Murphy Number of Pages - 64 Format - Hard cover Publisher - Editions Scholastic Published - 2017-11-01