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.

The moon people, Kaluma, Aluma, and others use a cloud bridge to travel to the Earth, a messy but beautiful world of incredible variety that becomes their new home.

A María se le cae el mundo encima cuando su padre le dice que se trasladan a vivir a Bolivia. Un mundo desconocido que le reserva sorpresas que ella no espera. ¿Hasta qué punto el azar puede cambiar la vida de una persona? Una novela que muestra los problemas de adaptación y, también, la capacidad de superación personal.

¿Qué tienen en común un tiburón, un caballito de mar y una raya? ¡Son todos peces! Conozca las características que comparten todos los peces. What do a shark, a seahorse, and a ray have in common? They're all fish! Learn about the characteristics that all fish share.

The skeletal system is made up of bones. They support and protect your body and help it work. Some bones help you run, or pick up a pencil; others protect organs, like the skull, which protects your brain. Learn about bones, joints and more in this informative book.