Exploremos el ciclo de la roca (Exploring the Rock Cycle)

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.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

Un niño mendigo cuenta la historia de cómo un día un caballero le dejó su yegua para que la cuidase. Mientras espera su regreso, varios personajes se le acercan con distintos propósitos: un par de niñas, a las que pide dos barras de pan por dejarles tocar el animal, dos truhanes que tratan de comprárselo... Finalmente, llega un grupo de soldados y le advierten de que el caballo pertenece a un famoso salteador de caminos, Dick Turpin. Se esconden para atraparlo cuando vuelva, pero cae la noche y el niño, agotado, se monta en el caballo y escapa. Sin embargo, todo esto no es más que el ...

No longer famous, journalist Cannie Shapiro writes science fiction under a pen name while raising her teenage daughter, and considers her husband Peter's request to have Cannie's flamboyant sister provide surrogate services so that they can have a second child.

Queremos que en compañía del Cid, los lectores recorran algunos de los géneros que forman la rica historia de la literatura hasta nuestros días. Desde los poemas medievales, a través del romancero, el teatro y el cine, llegamos hasta las recientes biografías de nuestro personaje. De todo hay, y esperamos que el lector avive su curiosidad sobre don Rodrigo Díaz de Vivar, cuya presencia es casi constante en nuestra literatura.

After the death of his uncle, Poldo describes growing up, his close relationship with his uncle and how he deals with the sudden loss.