Wheels and Axles

Simple machines have rarely looked as stunning as they do in this visually appealing and readily accessible set. Sharp images of these devices, both at rest and at work, give readers an up-close look at how the tools are used, capturing their modest beauty in striking detail; for instance, a screw partially drilled into a block of wood (Screws). Clear, concise language and simple sentences appear in chapters arranged by STEAM discipline, and this integrative approach helps students better understand the connections among the five areas of study and the world around them. A solid introductory series for young readers, especially those with an interest in how things work.