1000 problemas de química general

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.

Stephen F. Austin grew up to become known as the Father of Texas. Readers can learn about his interesting and incredible life in this appealing biography that has been translated into Spanish and highlights both Austin's life and Texas history. Through vivid images and illustrations, supportive text, an accommodating glossary and index, and fascinating facts, readers will learn about Texas pioneers, the empresario system, Freemasons, and how Austin became such an important figure in Texas history.

Learn about the rich history of La Misión de San Antonio de Padua: how it started, the people who ran it, the indigenous population, and it’s legacy today.

Esta es la primera novela larga del gran escritor ruso despues de su retorno de Siberia, donde estuvo deportado varios anos. El heroe de la obra, un personaje inquietante y complejo, Vanja, cuenta su propia historia. El nucleo argumental se teje en torno a la pugna de Vanja con el hijo del principe Valkorskij por el amor de una misma mujer. Y tambien a partir del proceso de que ha sido victima el administrador de dicho principe. Las reacciones vitales y morales de los personajes de Humillados y ofendidos responden a la gran preocupacion de hondura psicologica y de plasmacion de caracteres que ...