Mighty machines in action

In need of a giant hauler? Bring in the dump truck! The big truck looks very much like a heavy-duty sandbox on wheels. It moves dirt, rocks, and other loose loads. This book geared toward beginning readers spills basic facts about dump trucks.

Trash cans and dumpsters are the weights garbage trucks lift with their robotic arms. Once lifted, the bins lose their weight, being flipped upside down and emptied into the trucks' hoppers. In this low-level title, children will pick up a basic knowledge of garbage trucks.

Up for almost any job, a tractor is a dependable farmhand. This field machine plows, plants, and bales hay, among other things. It also lets many different pieces of farm equipment hitch a ride. The powerful tractors rolling through this book will pull along beginning readers.