Did you know that American bison are the largest land mammals in North America? Bison live in small groups called bands. Sometimes, bands join together to form a large herd. Learn more about the bison in this informative book.

"Presents information on simple machines with a focus on wedges. Explains what a wedge is, how wedges work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.

"Provides information about leisure activities that can be enjoyed in nature. Contains photos, charts, and healthy eating and exercise tips that encourage readers to get outdoors and enjoy rock climbing"--Provided by publisher.