¿Por qué hibernan los animales? (Why Animals Hibernate)

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.

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.

Describes the Boston Tea Party, including the events leading up to the party, its immediate effects on American-British relations, and why it is still an important event today.

GRADES K–2: Bring Spanish into the classroom! Introduce early elementary students to the topic of sound waves with this science-themed Spanish title. FEATURES: Kids will learn about how we send and recieve sound waves and complete an activity that supports further comprehension. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. WHY MY PHYSICAL SCIENCE LIBRARY: This collection introduces a variety of science topics while presenting complicated information in easy-to-understand language and...

Con esta novedosa y sorprendente exploración sobre los piratas descubrirá las hazañas y la vida de éstos hombres: sus armas, aventuras, leyendas, lenguaje y tesoros perdidos. • Averiguará como era realmente la vida a bordo de un barco de piratas. • Podrá conocer a Barbanegra, Calico Jack, y toda una amplia galería de piratas. • Descubrirá como eran los barcos y banderas piratas y las armas que utilizaban, desde machetes hasta trabucos, granadas y mosquetones.

Estos son dos tomos de un diccionario enciclopédico necesario para entender el vocabulario bíblico, los símbolos mitológicos, de las sociedades secretas y del misticismo, de los sueños, de los mensajes subliminales, de las leyendas y del folclore de diversas culturas antiguas. Este es un trabajo iniciado en 2012 que continuamente es actualizado, expandido y mejorado. Junto con los diccionarios 'Nombres Bíblicos' y 'Seres Pandimensionales' este trabajo es fundamental para el trabajo de cualquier estudiante de textos sagrados - por ejemplo, la propia Biblia -, del mundo onírico, de...