gearing

Photographs and simple text describe gears and how they work.

This accessible book helps readers relate wheels and axles to the technology in their daily lives through cool real-world examples.

Presents a story-in-rhyme which looks at how gears connect and help machines move.

Photographs and simple text in both English and Spanish describe gears and how they work.

Looks at many different kinds of wheels and discusses how they are used.

Explains the science of how pulleys and gears work, discussing real-life examples such as cranes, drive belts, drills, and mountain bikes, and includes activities that illustrate the principles covered.

An introduction to six simple machines--the lever, the inclined plane, the screw, the wheel and axle, the wedge, and the pulley--and their use in more complex machines such as derricks, bulldozers, and metal lathes.

An exploration of gears and what they do.