¿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.

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.

Bárbara Molina es desaparecida misteriosa y violentamente cuando tiene quince años. Es un enigma que, después de cuatro años sin resolverse, va a verse sacudido por nuevas claves. "Una historia de mentiras, secretos, engaños y falsas apariencias que pone el dedo en la llaga sobre mitos incuestionables. Un relato escalofriante que disecciona la hipocresía de la sociedad moderna. Una denuncia valiente de los abusos sexuales infantiles, sus devastadoras consecuencias y su invisibilidad en este mundo bienpensante nuestro."-- Back cover.

Land has many different characteristics. It can be hilly, rocky, grassy, narrow, and dry. Or, it can be flat, smooth, sandy, wide, and wet! This Spanish book introduces students to the concept of landforms. With images that are easy to identify and clear, simple sentence structures, this science reader simplifies scientific concepts for young students as they improve their reading skills. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage students in learning...

The United States grew rapidly from the time of the Louisiana Purchase to the building of the Transcontinental Railroad. All of this expansion came at the expense of Native American populations that had either lived in the region for centuries or been forced there from ancestral homes in the East. Tribes memorably fought on their own and together in an doomed effort to retain the land and a lifestyle that had long sustained their families. This book outlines some of the major conflicts of the Westward Expansion, and of the treaties and were signed, and often broken, by representatives of the...

Take a few moments of your day to quiet your spirit, think on God's amazing love for you, and make a meaningful connection with your heavenly Father--with these 3-minute readings designed just for you! Tomate unos cuantos momentos de tu dia para calmar tu espiritu, pensar en el asombroso amor de Dios por ti y establecer una valiosa conexion con tu Padre celestial -- con estas lecturas de tres minutos disenadas solo para ti!