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

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.

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.

Hurricanes takes you inside one of nature's most powerful events! Warm water and wind can quickly spin into a deadly storm. Dramatic photos show the damage huge hurricanes leave behind, and safety tips help you protect yourself from danger. Spanish Edition

Read Along or Enhanced eBook: Discover the world of mammals in this delightful nonfiction title! Readers will learn all about different mammals--from primates to marsupials, and rabbits to whales, even omnivores and herbivores. Featuring vivid photos and charts, clear text, and stimulating facts, this Spanish-translated book will have children eager to learn all they can about mammals!

Los arrebatados es una novela sobre la fatalidad. Cercana por su estilo y concepción a las epopeyas faulknerianas y al fervor por el lenguaje presente en las ficciones de Juan Carlos Onetti o Juan Benet, arranca con un suceso capital, un parricidio, en torno al cual se articula, gracias a la presencia de unas fituras arquetípicas hasta la caricatura, una desesperanzada, aunque a la vez emotiva, reflexión sobre la miseria y servidumbre que gobiernan las relaciones humanas. Nacida con vocación de tragedia y, a la vez, con un muy vivo propósito de trasladar al lector una irresistible...

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.