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...

¿Cuál es el colmo de…? es una hermosa colección de colmos infantiles. Los colmos son chistes para niños, en los que se juega con la imaginación. Libro de colmos para leer y compartir en familia. En este libro de colmos encontrarás - cuál es el colmo de los colmos - colmos de animales (perro, gato, panda, jirafa, etc.) - colmos de profesiones (electricista, abogado, arquitecto, policía, etc.) - colmos graciosos, locos y divertidos - colmos de objetos Además incluye guía para aprender a escribir tus propios colmos La risa es el mejor remedio para curar todos los males, no presenta...

Build early literacy skills, and develop oral and written language skills in emerging Spanish readers with this leveled fiction reader.

The Spanish-language edition of Wilma Unlimited. Before Wilma was five years old, polio had paralyzed her left leg. Everyone said she would never walk again. But Wilma refused to believe it. Not only would she walk again, she vowed, she'd run. And she did run--all the way to the Olympics, where she became the first American woman to earn three gold medals in a single olympiad.

It's Ms. Frizzle's birthday and the class tries to bake a cake but winds up inside it, learning about mixtures and reactions that occur when ingredients are put together."