Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

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.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

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.

En su etapa de estudiante (finales del 1425 - comienzos del 1426), el humanista Antonio Beccadelli, el Panormita, compuso el Hermaphroditus, título que alude al contenido tanto heterosexual como homosexual de la obra. Es una obra poética de carácter festivo que toma como modelo a Marcial y a los Priapeos, en la que revela que sabía compaginar bien sus estudios con la diversión de la vida estudiantil. Beccadelli aspiraba a que su obra estuviera a la altura de estos modelos. Pero esto no valió para sus opositores. El papa Eugenio IV prohibió la lectura del Hermaphroditus y en varias...

Provides information on the tiny reptiles, including their use of color as a defense, their climbing skills, and their ability to grow back a missing tail.

In this Spanish title, learn causes of extinction and what problems extinction causes for animals, wildlife, and humans alike.

¿Qué es el arte moderno? ¿Por qué se ama o se odia? ¿Y por qué es siempre tan exageradamente caro?Will Gompertz, director de Arte de la BBC, exdirector de la Tate Gallery de Londres y uno de los mayores expertos del mundo, ha escrito una deslumbrante guía que cambiará para siempre la manera en que miramos el arte contemporáneo. Desde los nenúfares de Monet hasta los girasoles de Van Gogh, pasando por las latas de sopa de Warhol y los tiburones en formol de Hirst, este libro nos descubre la historia que hay detrás de las obras, las personas que hay detrás de los artistas y la...