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...

Montañas que se elevan hasta el cielo, volcanes que cortan la respiración, desiertos insoportables, ríos interminables, salares inmensurables... ¡Más de 25 destinos para quienes deseen viajar hasta "lo más" de nuestro planeta!

Have you ever wondered what Space Camp is like? Join Isabella as she moon walks through the Moon Room, takes a ride in a Multi-Axis Trainer, tackles the Mars Climbing Wall, and takes the helm at Mission Control. Along the way, you'll practice measuring time. This fiction math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice...

Un escritor rebusca en un puesto de libros y encuentra un poema narrado en primera persona, que desvela la historia terrible de una mujer y su amado en plena época de posguerra. El escritor trata de encontrar a los verdaderos protagonistas de los hechos narrados, pero su búsqueda parece llevarle a encontrar otras cosas. ¿Dónde empieza la realidad y dónde acaba la ficción? Estupenda novela que muestra el amor y el ansia de conocer la verdad.

In Showing Kindness, beginning readers will learn about all the ways they can be kind and considerate in their daily lives. Vibrant, full-color photos and carefully leveled text engage young readers as they discover how they can build character by showing kindness.