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...

Excite your fifth grade students with this captivating nonfiction title, which explores the many technological advancements made throughout history. The interesting and intriguing facts found within the informational text, along with vivid images, diagrams, and charts, inspire curiosity in readers as they learn about miraculous inventions like the hologram, 3D printing, virtual reality technology, personalized medicine, and bionic body parts. This Spanish-translated nonfiction title will engage and encourage readers to imagine the next big technological innovation that could change the world. ...

Helps youngsters learn about these colorful figures and their fascinating lives through riddles, question and answer games, and activities. PP.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

This book describes how the activity of attending a baseball game requires using math for keeping score.