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...

With simple examples that are easy to relate to, this basic review of some of the building blocks of economics will help readers easily grasp the concepts. With language that is conversational without being too casual, readers are engaged throughout as they learn about not only these basic concepts but how they fit into the whole economic scheme of things, such as where goods come from. Readers will learn about the three factors of production, as well as what happens when resources are lacking and how that influences the entire economy.

Readers will learn about arachnids, insects, arthropods, and even parasites in this fascinating nonfiction reader that has been translated into Spanish. Featuring photos of these tiny creatures (some up to 100 times their normal size!), informational text, a glossary, and an index to aid in vocabulary development, this book will have children eager to learn more about these tiny creatures and the big impact they have on human life!

La celebración de navidad contiene un lenguaje universal, es aquella celebración que se festeja dentro de todos los hogares del mundo. Los clásicos villancicos vuelven a escucharse en una vela de nochebuena, las estrellas vuelven a iluminarse en el cielo, el fervor de diciembre estremece nuestros cuerpos, y las familias regresan al lugar de origen para reencontrarse una noche más. La importancia de la navidad es fundamental dentro de nuestras vidas, simplemente es la consolidación de los perpetuos valores: fraternidad, voluntad, libertad, esperanza, empatía y amor. Aquellos valores que...

Tells the events of the Boston Tea Party, one of the acts by American Patriots that led to the American Revolution. Written in graphic-novel format.