Simple Machines at Work Set

GRADES 3-6
In this hands-on series, readers will be introduced to some simple machines of which all complex machines are composed. Each book explains the fundamentals of elementary physics as they apply to the mechanical advantage of each machine. Features introductory vocabulary, fabulous full-color photographs, and real-world examples. Set of 6 includes Inclined Planes in Action, Levers in Action, Pullyes in Action, Screws in Action, Wedges in Action, and Wheels and Axles in Action. 24 pages each.