Exploremos el ciclo de la roca (Exploring the Rock Cycle)

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.

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.

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.

Readers are given helpful information about the dangers of drugs and alcohol, including narcotics, hallucinogens, and prescription medications in this informative nonfiction reader. Through detailed images, diagrams, Spanish-translated informational text, an index, a glossary of terms, and a list of websites that provide additional information, readers are given the tools and information they need to educate themselves about addiction, drug abuse, the health and social issues that drugs and alcohol can cause, and how to say no to peer pressure.

Índice: - I. Introducción - II. La industria migratoria del control y del rescate - III. Población extranjera y políticas públicas en la CAPV - IV. Administración corporativa y derechos fundamentales. Los turnos de oficio de extranjería - V. La detención, internamiento y expulsión de población extranjera en situación irregular en la CAV: Modalidades y problemáticas - VI. Conclusiones Bibliografía.

Introduce cachalotes, incluyendo sus diferentes partes del cuerpo, la forma en que viajan en grupos, lo que comen, y cómo cuidan a sus crías.

Dé rienda suelta a la creatividad de su hijo y a su atención por los detalles con más de 30 diseños únicos de unicornios. Más Más de 60 rompecabezas Sudoku, de dificultad media, para el desarrollo del cerebro. Los unicornios son muy divertidos de colorear porque llevan una vida muy mágica. ¡Comparte la diversión y la magia de los unicornios con un niño especial! Este libro para colorear es perfecto para que los más pequeños estimulen su creatividad e imaginación. Es un regalo perfecto. Consigue este regalo perfecto para los más pequeños de tu vida. Un gran regalo (de...