Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

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.

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.

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.

Las apreciaciones que se recogen en esta obra se evidencian Ia posición y Ias conversaciones un grupo particular de investigadores que llevan a cabo sus indagaciones y reflexiones desde los Estudios organizacionales saber que en Colombia esta aun en construcción .Estos desarrollos no reflejan integralmente la realidad del país y no incluyen Ios múltiples temas y aproximaciones que existen, pero constituyen una muestra importante de la mirada académica a nuestro contexto. por lo tanto buscan ser punto de inicio, no solo para seguir comprendiendo y rastreando la evolución de los estudios...

Novedosos libros que nos acercan al modo de vida de antiguas civilizaciones, con vasta informacion y laminas transparentes de acetato que al levantarlas descubren construcciones caracteristicas de cada cultura.

A force is a push, a pull, or a turn. Every force has an equal and opposite force. Forces are always with you! They are all around us. Learn about forces with this Spanish science reader that features easy-to-read text. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.

El Tai Chi CHuan es una arte marcial interno de origen chino cuyo desarrollo contempla diferentes aspectos: desde ejercicios para la salud (Chi kung), la meditación (Zhan Zhuang), el aprendizaje de formas (de mano vacia y armas), así como ejercicios para el desarrollo y conocimiento marcial del sistema (tui sous y aplicaciones marciales). El gran auge en occidente se debe principalmente a que es una herramienta perfecta para alcanzar un equilibriofisico y mental, regulan el flujo natural de la energía (chi) y las emociones, lo que contribuye directamente en la prevención y mejora de la...