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...

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies! This 6-Pack includes six copies of this title and a lesson plan.

Se presenta una cuidada edición de uno de los manuscritos más antiguos sobre el arte de la navegación. Se trata del Ms. 46 de la Biblioteca General Histórica de la Universidad de Salamanca, cuya reproducción facsimilar se incluye a todo color, precedida de una detallada introducción, desdoblada en la doble vertiente histórica-astronómica, así como el estudio sobre las mismas, debidamente anotado por los autores, especialistas de referencia en sus respectivas disciplinas. Se completa con la transcripción, que facilita la comprensión, al corregir algunos aspectos erróneos en...

Mnemonics is an age-old technique for remembering names, numbers, and many other things. In Spanish Memory Book, Junior Edition, William Harrison and Dorothy Welker offer onginal mnemonic rimes appropriate in subject matter and skill level for junior high and high school students to help them acquire and remember Spanish vocabulary. Included are mnemonic jingles for several hundred of the 2,000 most commonly used Spanish words. Each jingle contains both the sound of the Spanish word and its English meaning. The authors have also included a general pronunciation guide to Spanish vowels and...

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.