¿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.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

If you lived long ago, how different would life be from how it is today? Many things are different, but many things are the same! Introduce students to the concept of change as they compare homes, schools, jobs, technology, and transportation from the past and present. This primary source book uses dynamic primary source images and supportive text to integrate social studies content and language arts instruction. The accessible table of contents, glossary, and index work to aid students in better understanding the content. Aligned to state and national standards, this Spanish book will engage ...

Discusses the various features of Australia, including its climate, mountains, rivers, lakes, animals, vegetation, coral reefs, flightless birds, population, and cities, and history of the Aborigines.

Un estudio riguroso del arte erótico japonés desde mediados del siglo XVII hasta finales del XIX, el denominado periodo ukiyo-e. Una recopilación cronológica de artistas que incluye figuras de la talla de Utamaro, Hokusai, Harunobu, Kunisada y Kuniyoshi, entre muchos otros. Profusamente ilustrado con más de 350 imágenes de grabados en bloques de madera, rollos de pergamino y pinturas, este libro es una referencia imprescindible del arte erótico ukiyo-e. Con un diseño marcadamente moderno que potencia la exquisita calidad de esta edición, cada ejemplar incluye una lámina de regalo de ...

Diego de Torres (1694-1770) ha pasado a la historia como el creador de uno de los textos más importantes de la literatura española, Vida, ascendencia, nacimiento, crianza y aventuras de Don Diego de Torres Villarroel.