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

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

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.

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

Venecia, diciembre de 1882. La deslumbrante e impetuosa Lou Salomé concierta una misteriosa cita con Josef Breuer, reputado médico vienés, con el objeto de salvar la vida de un tal Friedrich Nietzsche, un filósofo alemán casi desconocido pero de brillante porvenir, que manifiesta una crisis profunda de tendencias suicidas tras la relación que ha mantenido con Lou Salomé y Paul Rée. El doctor Breuer, influido por las novedosas teorías de su joven discípulo Sigmund Freud, acepta la peligrosa estrategia que Lou le propone –psicoanalizar a Nietzsche sin que éste se dé cuenta–, sin ...

An incessant journey through the imagination that forms in the world of a child when immersed in letters, words and books. A small girl walks among the words that form the classic childhood stories to tag along with a boy, so he can enter into the woods of imagination and provoke the pleasure for reading. With a poetic and evocative language, the authors make a profound reflection on the importance of reading in the formation of an individual.

"Datos fascinantes, ilustraciones divertidas y explicaciones claras y sencillas, ayudarán a los niños a entender el maravilloso mundo de los litorales"--Back cover.

Las calles de una ciudad están llenas de historia, curiosidades y viejas leyendas. Descubre todo lo que hay que saber sobre Valencia con esta divertida guía, pensada para que los jóvenes viajeros disfruten conociendo esta interesante ciudad. Además, encon