Agatha Christie

Read Along or Enhanced eBook: Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

"Simple text and color photographs describe the units and tools used to measure length and distance--in both English and Spanish"--

Which things move slowly? Read this book to find out about how and why things move slowly. Books in this series introduce children to simple forces. Each book uses simple, repetitive text to teach children basic vocabulary, and includes stunning photographs that show how different forces are at work in the world around us. In Slow, children learn about things that commonly move slowly, how pushes and pulls can make something move slowly, and how some things are slower than others.

Filled with geographical and historical data, this unique book explains the beauty and characteristics of the Chihuahua desert, the largest desert in Mexico.