Josh Gregory

Learn all about the lives and habits of polar bear cubs.

"How deep is Nevada's Lake Tahoe? One of the country's deepest lakes, it plunges to a depth of 1,640 feet (500m). Inside [this book] you'll find: why large parts of Nevada are empty of people; a timeline, photos -- and what Nevadans do for fun; surprising true facts that will shock and amaze you!" -- Back cover.

Provides an introduction to the history, culture, geography, and government of Arizona.

Whether youre walking along a busy city street or enjoying the solitude of the wilderness, you are always surrounded by sound. Readers will learn how sound waves are formed and how they change as they move. They will also find out how people hear sound, how sound waves can be used in unexpected ways, how the properties of a sound wave affect the way it is heard, and much more.

"From the towering peaks of the Teton Range to the sprawling, green valley known as Jackson Hole, Grand Teton National Park is home to some of the most beautiful natural scenery in the United States. Readers will hike through the entire park to get a look at rare and fascinating plants and animals. They will also explore the park's history, from how it was formed to how people first discovered it."--

Provides an introduction to the history, culture, geography, and government of Oregon.

"Learn all about Grand Canyon National Park, including how it was formed, which wildlife can be found there today, and how it is affected by environmental issues."--Provided by publisher.