Simple Machines

Simple Machines by Allan Fowler is part of the Rookie Read-About Science series, published by Children's Press. Aimed at those who are new to the idea of simple machines, it explains what levers, pulleys, wheels and ramps are, and how they work. It gives many real-life examples with which most children will be familiar. Recommended even for older children, teens or adults who are not familiar with the concept. 32 pages, many full color illustrations.