Build, Learn, and Explore the Amazing World of Everyday Engineering: Simple Machines You Can See and Use!Discover the hidden science behind the things you use every single day with this exciting interactive coloring and activity book! From playground seesaws and bicycles to pencil sharpeners, escalators, can openers, and backpacks, kids will explore 20 everyday examples of simple machines that make life easier, faster, and more fun. Packed with fascinating engineering facts, fun trivia, discussi