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

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.

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.

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

La idea insistente de inmortalizar lo intangible. Los pensamientos sublimes de situaciones, cosas, o personas que estallan en la mente. Saber que con una pluma y un papel se pueden plasmar vidas, sentimientos y añoranzas. En cada poema se describe un recuerdo, un momento que se quiso hacer eterno... los paseos por la montaña, los ojos cafés llenos de otoño, las largas caminatas bajo el dorado sol de la tarde, tomar una cerveza a la orilla del mar, o una taza de café al despertar, el amor de una madre hacia una hija y viceversa, los besos entre sábanas blancas, la muerte de quien tanto...

This nonfiction Spanish book teaches students about the rock cycle and introduces them to important scientific concepts and vocabulary terms. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.

Conecta con Pupi es el nuevo proyecto de Ediciones SM para el Primer Ciclo de Educación Primaria.Conectar con Pupi supone: *Entrar en una nueva y clave etapa educativa. *Desarrollar las competencias básicas. *Reflexionar sobre lo que se aprende y cómo se aprende. *Iniciarse en el trabajo colaborativo. *Utilizar las tecnologías de la información.Todo un reto, una apasionante aventura que será más amena y divertida de la mano de Pupi y los nuevos personajes. Las claves del proyecto son:Competencial. Aprender para la vida a partir de cuestiones de interés para encontrar soluciones...