Construcción de una ciudadanía intercultural y responsable

Surveys the life of the American statesman, lawmaker, writer of the Federalist Papers, and first secretary of treasury under George Washington.

La historia de una trágica equivocación: la política colonial de España en el protectorado de Marruecos. Un relato protagonizado por dos soldados de leva, Andreu y Amador, y el sargento Molina, en el que se describen los horrores de la guerra y el horror del hombre ante un destino impuesto por eso que llaman «razón de Estado».

In this stimulating, Spanish-translated nonfiction book, readers will discover the various types of friction--including rolling friction, sliding friction, fluid friction, and static friction--and the huge impact it has on nature, machines, and our lives. In addition, readers are encouraged to perform basic experiments to assist in the understanding of friction, kinetic energy, and water resistance. With real-life examples, colorful images, accommodating graphs and charts, and informational text, this title will inspire and engage children.

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. They’ll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Don’t worry, they’ll be happy to learn that (hopefully) we have millions of years left!