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...

Se le enseña cómo dibujar paisajes, animales, casitas, barquitos, y otras cosas usando bolitas, palitos, tiritas, tortillitas, etc.

Bullying Is A Huge Issue In Our Schools Today And This Book Teaches Students What To Do If They Are Being Bullied And What They Can Do To Help A Friend Or Fellow Student Who Is A Victim Of Bullying. Complete K-5 Social Skills Collection. Paired With A Fiction Social Skills Title.

This complete Spanish translation of the highly acclaimed Isaac Asimov's 21st Century Library of the Universe is ideal for students still developing their English-language skills.

En la actual provincia argentina de Mendoza, en América del Sur, hace miles de años había mujeres y hombres luchando por sobrevivir. El rigor de la Era del Hielo, el peligro constante representado por fieras gigantescas y catástrofes naturales devastadoras, sumergieron a esos seres humanos en el terror, la superstición y la mayor brutalidad hacia los más débiles. Esta es la historia de Ulka, una joven que aprenderá a vivir y luchar por ideales que algún día serán los de toda la Humanidad: la libertad y el respeto por la vida en todas sus manifestaciones. En sus aventuras por esas...