Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

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.

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.

Biography of Elizabeth Cady Stanton, a leader in the fight for women's right to vote in the United States.

Este libro es una guía práctica dirigida a todos aquellos usuarios de Windows que desean comenzar a utilizar Linux. De forma práctica, se muestran las posibilidades de sustituir Windows por Linux y realizar todas las tareas que habitualmente se ejecutan con el PC. Para la confección de esta guía se ha elegido Mandriva, a pesar de que existe una gran variedad de distribuciones de GNU/Linux, por dos razones fundamentales: la facilidad de uso de su interfaz gráfica y la gran cantidad de aplicaciones listas que incluye para su instalación; todas las comentadas en el libro pueden instalarse ...

En El fascinante mundo de... las aves rapaces descubrirás la rápida garra acuática del águila pescadora o la alucinante caída en picado, a 200 km por hora, del halcón peregrino en busca de su presa. Verás el preciso planear del buitre oteando la carroña o te sorprenderás de la habilidad del alimoche cuando utiliza una herramienta para conseguir su comida... y muchas cosas más sobre su fascinante mundo.

Build early literacy skills, and develop oral and written language skills in emerging Spanish readers with this leveled fiction reader.