Exploremos los minerales de la Tierra (Exploring Earth's Minerals)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

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.

La Segunda Guerra Mundial, la invasión nazi en Polonia, el comunismo y la persecución religiosa, la muerte de los seres más cercanos... Karol Wojtila no sólo superó los tiempos difíciles de su país, sino que su liderazgo guió, entonces como estudiante y sacerdote, y después como obispo y Papa, a toda la sociedad hacia los ideales de tolerancia y educación para la paz que necesitaba el mundo. Ideales que siguen presentes pocos años después de su muerte.

Terremotos y tsunamis is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

La historia de los avances más importantes de la humanidad como nunca te la han contado. ¿Qué tiene que ver Tales de Mileto, el primer filósofo de Occidente, con el wifi? ¿Qué elemento de la tabla periódica sirve para preparar deliciosos postres y enviar naves al espacio exterior? ¿Qué tiene que ver la invención del acueducto con el teatro callejero? ¿Por qué las mujeres son las principales precursoras del arte? ¿Cómo la vitamina C nos ayudó a medir la distancia entre la Tierra y el Sol? ¿Por qué sin la agricultura no hubiéramos desarrollado sentido de la moda? Episodios...

"In search of "Don Quixote" from other side of the estimate that there are no gaps between the various fields of knowledge and literary productions that are specific manifestations of a global representation system historically determined. So, it seemed necessary to put Don Quixote in its various circumstances, linking it to the contexts under which it has set, especially regarding attitudes and references involved, not to mention the cultural particularities that arise in him, both scholarly and popular. Hence, the approaches used, of a historical, anthropological and literary, to go for the ...