¿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.

Readers learn the basics of caring for common household pets, from physical features, to behavior, to diet. Also explored is how the animal's natural habitat differs from the habitat provided in the home.

The Mi Mini Biografia series are Spanish language biographies for the earliest readers. This book examines the life of Eleanor Roosevelt in a simple, age-appropriate way that will help children develop word recognition and reading skills. Includes a timeline and other informative backmatter.

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 ...

Looks at the life of Betsy Ross from her Quaker childhood to her days as an independent businesswoman. Also examines the legend of the Betsy Ross flag. Written in graphic-novel format.