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...

Tome un viaje a México y mira por que este país es especial. Este texto ayuda a los lectores a aprender sobre la comida, los animales y la cultura de México. Las fotografías de color y las preguntas de pensamiento crítico completan esta divertida mirada a las personas y lugares de México. Take a trip to Mexico and find out what makes this country special. Now in Spanish, this carefully leveled text helps readers learn about the food, animals, and culture of Mexico. Full-color photographs and age-appropriate critical thinking questions round out this fun look at the people and places of...

English Spanish Bilingual children's book. Perfect for kids learning English or Spanish as their second language. Jimmy the little bunny goes to the beach with his family. There he learns about the importance of helping others. When Jimmy's sandcastle is destroyed by the wave, they work together to build the bigger and better one. Everything works out better when we help each other. Jimmy el conejito va a la playa con su familia. AhI aprende sobre la importancia de ayudar a los demAs. Cuando el castillo de arena de Jimmy es destruido por una ola, trabajan juntos para construir uno mAs grande...

These biographies introduce young readers to important figures in American history. Ideal for reports and correlated to the social studies curriculum, the series presents a straightforward account of each individual's life and times and describes how each person contributed to the shaping of our nation.

Discover the different ways that people spend, save, and budget their money. Readers are introduced to important personal financial aspects such as savings accounts, budgets, budget analysis, credit and debit cards, and taxes. Through Spanish-translated informational text, vivid photos, and helpful graphs and charts that assist in implementing mathematical skills such as percentages, readers will be encouraged to save and spend their money wisely and responsibly.