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.

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Todos tienen un final, causado por sus propios comportamientos, sus propios hábitos. Alexis dañará a muchos que no conoce, Camila a su familia, Agnes no quiere ser controlada, pero ¿cómo demuestra que merece ser libre? Mateo morirá con toda su vida siendo sueños, mientras que Fernando lo hará con todo lo que conoce siendo trabajo. El camino al cambio está ahí, no es fácil, algunos no sobrevivirán, pero, si lo toman, podrían cambiar su final. Solo necesitan comenzar.

Destacada dramaturga tremendamente crítica con la hipocresía de su sociedad, destapó y retrató la tipología de la mujer sureña norteamericana a través de sus obras. Valiente, enigmática y conflictiva, su compromiso ideológico la llevó a defender y apoyar causas políticas como la Guerra Civil Española o a criticar ferozmente la “caza de brujas” de McCarthy.

Este libro extraordinario explora las similitudes entre los seres vivos que habitan nuestro planeta, las criaturas de los mitos y leyendas y los animales fantásticos de J.K. Rowling. El libro invita a toda la familia a descubrir los vínculos que existen entre las criaturas mágicas del universo de J.K. Rowling y los asombrosos animales que habitan la tierra, los mares y los cielos de nuestro planeta. A lo largo de sus páginas, didácticas y de gran belleza, se evoca la verdadera magia y majestuosidad de la naturaleza en todas sus formas. El interior está lleno de mapas antiguos, notas de...