¿Por qué hibernan los animales? (Why Animals Hibernate)

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

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.

Robbery, gunfights, murder--outlaws ran rampant all across the Wild West! Readers will be introduced to some of the most famous robbers and outlaws of the Wild West in this enthralling, Spanish-translated nonfiction title. With vivid images, informational text, and incredible facts and stories about such well-known figures as Billy the Kid, Butch Cassidy, and Jesse James, readers will be engaged from cover to cover! This 6-Pack includes six copies of this title and a lesson plan.

In this inspiring biography, readers will learn about the incredible journey of Helen Keller. Using informational, Spanish-translated text and expressive images and photos, readers will discover the undeniable determination that Keller had as a young deaf and blind girl and how her teacher, Anne Sullivan, helped her to read, write, speak, and graduate from college. With a timeline, a bibliography, and a glossary of terms, children are given the tools they need to expand their knowledge about this fascinating and inspiring woman. This 6-Pack includes six copies of this title and a lesson plan.

Primero fue el Big Bang. Despus se form nuestra galaxia. Ahora vamos todos lanzados a travs del espacio a la velocidad de la luz, junto con billones de otros planetas, estrellas, satlites, meteoros, cometas, asteroides, meteoritos y Dios sabe cuantas cosas ms.Este asombroso libro te proporciona informacin minuciosa de nuestra galaxia y mucho ms all. Saltars de excitacin al hacer una gran gira por el sistema solar, donde esquiars en Marte y conocers al triste compaero de Plutn. Te dejarn sin aliento algunos datos increbles acerca de gigantes rojas, enanas blancas y supernovas. Adems,...

Material didáctico, sencillo y práctico, estructurado en ocho ejes temáticos que recogen todos los elementos del sonido.