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...

Dragonflies are large flying insects known for their brightly colored bodies and see-through wings. They are among the fastest insects in the world. Learn more about these amazing animals in Dragonflies, a Fascinating Insects book.

“Este libro está escrito para ti, curioso de cualquier edad.” Esta es una de las primeras líneas de El mundo de Max. La ciencia para todos. Vive con Max sus aventuras y descubrirás a través de sus ojos que el mundo está lleno de maravillas. Aquí encontrarás las explicaciones a muchas cosas que suceden a tu alrededor y además podrás comprobarlas tú mismo con los numerosos experimentos sobre la materia, la energía, la luz, la percepción, la electricidad, etc. que se proponen en cada capítulo. ¿Te atreves a conocer cómo es tu mundo en realidad? Si es así... ¡Bienvenido a El...

Count, sort, and classify the dress-up hats, cowboy hats, and silly hats! Beginning readers will enjoy learning to classify and sort objects with this brightly illustrated Spanish book. Featuring vivid images and easy-to-read text, this full-color book develops students' math and reading skills and introduces them to early STEM themes. The Math Talk section includes questions that will increase understanding of basic math and reading concepts and develop students' speaking and listening skills. Learning math is fun and easy with this engaging text!

Tristán, Guillermo y Violeta viajan a Yucatán en pos de un tesoro perdido. Están dispuestos a vivir grandes aventuras, pero lo que les espera es digno de las mejores novelas de aventuras.