Puntos y posiciones

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.

La Universidad de Murcia, continuando con su iniciativa comenzada en el año 2009 de orientar y ayudar a los alumnos que preparan las pruebas de acceso a las enseñanzas universitarias oficiales de grado, ha decidido presentar esta nueva Guía de la Materia de Inglés. La Guía se concibe como un material de apoyo para los alumnos que se encuentren en posesión del título de Bachiller o equivalente, los que posean títulos de técnico superior de formación profesional o bien aquellos mayores de 25 años que tengan la intención de realizar el examen de la materia de Inglés en...

Take a virtual tour of the Smithsonian! With this Spanish book, you’ll spend a day in the life of a bird keeper and learn how they are “hatching” new plans to help endangered birds. English language learners will read about how an egg hatches, the incubation period, and bird species such as the Kiwi, the emperor penguin, and the Guam rail. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students...

Essays by well-known climbers accompany a range of superb color landscape photographs that echo the great traditions of the Ansel Adams and the Sierra Club large format books of the 1970s.