The first work shirkers

This booklet is a unit study into the story and science behind simple machines.
Meet the first scientists – the people who first, probably accidentally, invented machines to do their work for them.  Discover the scientific theory behind chilling out and avoiding breaking a sweat. This book covers the principles of simple machines: the lever and the inclined plane. It includes the story and theory behind the science; hands on practicals from materials found around the home; quiz, game, 'Heroes of science' trading card, links to other free resources.