Exploremos las rocas sedimentarias (Exploring Sedimentary Rocks)

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.

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.

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.

Arvid Falk, un joven idealista y generoso, deja su empleo para dedicarse a la literatura militante. Al cabo de muchas experiencias amargas, vuelve a su vida de empleado y, ya sin ilusiones, dedica sus horas libres a la numismática. A la figura de Arvid se contrapone la de su hermano, Carl Nicolaus, mezquino e hipócrita aunque con un fondo de humanidad verdadera. Una serie extraordinariamente incisiva de retratos de personajes y ambientes de la sociedad sueca de finales del siglo XIX completan el impresionante edificio narrativo de la novela: figuras de la vida bohemia, periodistas sin...

La poesía de Gabriel de Celaya es pieza clave para determinar y puntualizar la dinámica evolutiva de la poesía española de posguerra. Ya sea a través de la alabanza, la mayoría de las ocasiones, ya sea a través del vituperio o de valoraciones acomodaticias, en contadas circunstancias, la presencia del escritor guipuzcoano es obligada siempre que de una manera objetiva y científica se trate de marcar los derroteros poéticos de estas últimas décadas, especialmente en la segunda parte del siglo XX.

El Boletín Histórico de Sociedad de Historia y Geografía de Chile fundado el 12 de febrero de 2012 por Don Ricardo Loyola Loyola y Don Brus Leguás Contreras, es la continuación de la otrora revista titulada “El Boletín Histórico de la Provincia de Marga-Marga”.

This informative, Spanish-translated book teaches early readers about the importance of government and how it impacts our lives. Readers will learn about taxes, the three branches of government, voting, and more. Engaging, primary source documents and images keep students reading as they build their literacy skills and social studies content knowledge.