Exploremos los minerales de la Tierra (Exploring Earth's Minerals)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

"With vivid photographs and simple text, books in this series introduce children to the concepts of currency, exchange, and global diversity. In this book, children learn how people spend money on goods and services around the world."

Alexander Graham Bell was always trying to invent new things! In this biography that has been translated into Spanish, readers will learn about Alexander's life as a teacher and inventor of such incredible inventions as the telephone, record player, and metal detector. Colorful images, supportive text, an interesting timeline, and a helpful glossary, table of contents, and index combine to give readers an inspiring look into the life of Alexander Bell.

Simple text and photographs show how common shapes can be put together to create new and different ones.

«De la claridad de sus desiertos, del rumor de sus aguas milenarias, de la hospitalidad de sus gentes, del descubrimiento de sus mundos recoletos, en una palabra, de lo que busqué, vi y encontré en Siria, trata este libro», dice Rosa Regàs en el preludio. En ese viaje de dos meses, la escritora reivindica la aventura que reside en una peculiar y personal forma de ver, de mirar y de descubrir que nada tiene que ver con el exotismo y el turismo cultural.