In 1836, 15-year-old Cal and his mother ride across the Texas countryside. Suddenly, they spot thousands of Mexican soldiers approaching on the horizon. Cal knows they mean trouble, so he steers the wagon to the safest place around, the Alamo! Davy Crockett, Jim Bowie, and other soldiers are there, waiting for a fight. But can their small group hold off an entire army? It'll be a battle they'll never forget.

A simple introduction to electricity, describing how it is produced and some of the ways we use it every day.

An introduction to the sources and characteristics of light.

An introduction to the sources and characteristics of heat.

Simple text and photographs present zoo keepers and their role in the community.

Describes what friction is and gives some examples of how it causes moving things to stop.

"Simple text and photographs present an introduction to the dachshund breed, its growth from puppy to adult, and pet care information"--Provided by publisher.

Presents the history of Pennsylvania, discussing interaction between Native American tribes and European settlers, as well as leaders including William Penn and Benjamin Franklin, complete with period maps and first-person accounts.

Introduces the geography, wildlife, and people of Arizona's Grand Canyon.

Simple text and photographs describe and illustrate how to use a thermometer.