Exploremos las rocas sedimentarias (Exploring Sedimentary 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.

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 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.

Alice Fancourt , una feliz madre primeriza, decide salir a dar un paseo después de dar a luz a su hija. David, su marido, queda a cargo de la pequeña Florence. Debía cuidarla, pero cuando Alice entra en la habitación, la pesadilla empieza: el bebé que duerme en la cuna no es su hija...

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.

In this basic concept, Spanish-translated nonfiction book, bright photos and simple, Informational text encourage beginning readers to compare sizes to find what's big and little in their world! This 6-Pack includes six copies of this title and a lesson plan.

De la A a la Z, cuentos con rima, maravillosamente ilustrados, que invitan a reconocer las letras con humor y fantasía. Con instrucciones didácticas para el adulto que acompaña la primera lectura y ejercicios recomendados para los niños. Con letra mayúscula de imprenta. Disponible en Argentina y países limítrofes.