Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

Los problemas de Danny Bell pueden resumirse fácilmente en tres palabras: unos padres raros. Por eso, cuando oye hablar de Cambia de Padres, una agencia que ayuda a encontrar a los padres que uno se merece, no tarda mucho en contactar con ella. Pero ¿realmente unos padres son la mejor solución? Y... ¿por qué tiene Dani la sensación de que la gente de Cambia de Padres oculta algo?

Young children are natural problem-solvers and always looking for answers, especially when it involves interesting animals. This Spanish-language edition of Feathered and Fierce provides young curious readers with striking visual clues and simply written hints. Using the photos and text, readers rely on visual literacy skills, reading, and reasoning as they solve the animal mystery. Clearly written facts give readers a deeper understanding of how the animal lives. Additional text features, including a glossary and an index, help students locate information and learn new words.

Examines prehistoric cave bears, including their biology, hunting techniques, and lifestyles. Discusses possible reasons for their extinction.

Posing questions which range from the most unusual matters to the most elementary ones, Questions that make your hair stand on end 2 focuses on the Earth and the Sun. Readers will be able to entertain themselves with very illustrative experiments and will also get to know what is so special about the Eiffel Tower, who Diogenes was, why Magellan lost a day on his way, why we get goose bumps, how can temperature be measured with a cricket, among other curious facts. In addition to the recognition of critics and readers, Questions that Make Your Hair Stand on End 2 was awarded the Premio...