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

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.

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.

El ensayo es un simulacro por excelencia de lo que se va a realizar en público. Aprende más sobre cómo realizar un ensayo ordenado y bien enfocado, con el propósito de eliminar distractores para centrarse en inspirar y guiar con libertad a la congregación en la adoración a Dios.

La serie Cienciaenshorts nace para dar cabida a pequeños relatos que acercan al público de forma amena diferentes aspectos de la ciencia en formatos literarios. Obras menores solo en extensión. Se trata de una fórmula imaginativa que puso en marcha hace años nuestra editorial en forma de concurso, donde los autores de los relatos fueran científicos-escritores con voluntad de trasmitir con precisión conceptos científicos a la sociedad, de una manera comprensible para esta. El jurado del I Concurso de relatos científico-literarios "¿Te atreves...?" estuvo compuesto por los siguientes...

¿Piensas que la filosofía es algo anticuado, abstracto y aburrido? Este libro te demostrará que te equivocas. A través de las historias de 100 filósofos y pensadores de todas las épocas y lugares, descubrirás que la filosofía está más viva que nunca. Junto a Sócrates, Hipatia, Kant y Voltaire, aprenderás a reflexionar sobre diferentes temas, desde los fenómenos de la naturaleza hasta el ser humano, desde el lenguaje hasta el amor, incluso sobre la existencia de Dios. Una historia para cada día, que comienza con preguntas y curiosidades sobre la vida diaria, que estimularán y...

Henna is more than an ancient art form. It is a symbol of hope. Explore the meaning of henna. Learn the basics, and then design your own henna patterns. Are you ready to get started? This full-color nonfiction reader will engage students in reading while introducing them to new vocabulary terms and concepts. Important text features include a glossary and a table of contents to develop students' comprehension and literacy skills. This Spanish book aligns with national and state standards and features exciting TIME For Kids content to keep English language learners engaged in learning.