Los planetas (The Planets)

Black holes are neither holes nor black. They're invisible and packed with matter! Future astronomers will find out many more fascinating facts about these space phenomena with this intriguing book. Carefully crafted text encapsulates the most important information about black holes, such as how scientists locate them and their significance in a star's life cycle. Amazing photographs support critical concepts and inspire a true appreciation of the spectacles of space.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

NOS ENCONTRAMOS ANTE una realidad social volátil y vertiginosamente cambiante, que nos obliga a una renovación permanente de ámbitos y situaciones que hasta ahora parecían relativamente estables, o bien evolucionaban de una forma lenta y más o menos controlada. El rápido desarrollo tecnológico y las nuevas y variadas formas de comunicación en las que estamos inmersos están configurando y reclamando un nuevo espacio educativo, un replanteamiento de las finalidades de la educación y la enseñanza. Las instituciones educativas no pueden permanecer al margen de esta realidad social por...

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Dexter is displeased. Like any self-respecting, totally decent, soundly homicidal guy, Dexter Morgan takes great pride in his work and is careful to remain anonymous. As his colleagues grow more paranoid of the killer in their midst, Dexters position is increasingly perilous. He is running out of time to track down this copycat.