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...

In this biographical book, young readers will learn about the brave life of Harriet Tubman. Readers will discover how Tubman bravely escaped from her life as a slave to cross the Mason-Dixon line into freedom and how she helped hundreds of other slaves into freedom through the Underground Railroad with the help of abolitionists. The vivid images, stunning facts, and supportive text work in conjunction with the helpful glossary, index, and timeline of Tubman's life to give readers an engaging experience as they move from cover to cover. This book has been translated into Spanish.

Cuando suenan las primeras notas de Turn It Up, ¿sientes que tu cuerpo no puede parar? ¿Eres fan incondicional de Calum y lo sigues desde su participación en La Voz Kids? Si te consideras un auténtico calumier, este libro es para ti. «Me llamo Calum y soy un chico normal. Después de participar en un concurso de televisión mi vida cambió. Ahora, gracias a todos mis fans, chicas y chicos que me dan su apoyo y cariño, estoy pasando por el mejor momento de mi vida. »Cada vez que veo cómo cantáis mis canciones, cada vez que siento vuestro calor en los conciertos, cada vez que me...

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."

Follow a day in the life of two children from different cities! This entertaining title has been translated into Spanish and encourages young readers to practice time measurement skills and early STEM themes, like reading analog and digital clocks. Familiar images and fun practice problems will have young readers thinking about how they can measure time throughout a day in their own lives!