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.

Cynthia Ann Parkers family moved to Central Texas when she was about nine years old. A year later, a large force of Comanche warriors attacked Fort Parker and seized Cynthia Ann and four other captives. The other four were eventually released, but she lived among the Indians for 25 years, immersed in the Comanche way of life. Though given a number of opportunities to go back to her white family, she always chose her life with the Comanche, choosing instead to stay with her husband and children. She eventually returned to white society as an adult.

Este diccionario ilustrado presenta diferentes escenas de la vida cotidiana de Caillou. Los niños descubrirán con él el universo de Caillou: su habitación, sus juguetes, etc. Los niños disfrutarán observando los detalles de la ilustración, que representa una escena familiar. Después podrán nombrar los objetos que aparecen en la página y afianzar lo que han aprendido con divertidas actividades.

By day, Zoe Zhang is a fourth-grade bunny who loves reading books and playing soccer. By night, she's Robin Hoodie, a hero bandit who steals from the greedy and gives to the poor. When a dishonest city official bullies her family, she and her band of Merry Mates fight back. Kids will be captivated by this fast-paced adventure story that will appeal to reluctant readers. This short, 32-page chapter book features colorful, lively illustrations to capture the attention of kids who enjoy stories about underdog superheroes.

El 13 de octubre de 1909, hace ahora exactamente cien años, moría fusilado en el castillo de Montjuïc el pedagogo, anarquista y librepensador catalán Francisco Ferrer i Guardia, condenado a la última pena en virtud de una polémica sentencia que lo consideró «autor y máximo responsable» de los sucesos revolucionarios conocidos históricamente como la Semana Trágica. Con la ejecución de Ferrer i Guardia la España dogmática e intransigente, encarnada en el Gobierno de Maura, pretendió saldar, en un controvertido ajuste de cuentas, la deuda que con ella tenía contraída el creador ...