Productores y consumidores (Producers and Consumers)

Most of the Earth's changes happen over millions of years, but earthquakes can force significant changes to the land in just a few moments. Readers will learn the science of plate tectonics and its role in the development of earthquakes around the globe. They will also learn that not all rocks are created equal. In fact, rocks are all different ages! This Spanish-translated book concludes with images of the damage and destruction that earthquakes can cause.

In this Spanish title, learn about what makes endangered jungle animals so unique and why they need to be protected.

In this Spanish title, learn causes of extinction and what problems extinction causes for animals, wildlife, and humans alike.

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

El conmovedor relato de un joven refugiado que busca asilo en Norteamérica Manuelito, un niño de trece años, vive con su familia en un pueblito en Guatemala. Pero la vida es todo menos idílica: las PAC--o Patrullas de Autodefensa Civil-- son una amenaza constante en las calles, y recuerdos aterradores de la guerra en el país siguen marcando la memoria colectiva de los campesinos. La situación se deteriora aún más cuando pandillas que trafican con drogas, respaldadas por el gobierno, se instalan en el pueblo y toman el control. Temiendo que a su hijo lo obliguen a meterse a pandillero, ...

El libro analiza el tema en dos partes diferenciadas y complementarias. A la primera corresponde la descripción de los planteamientos estilísticos del Romanticismo, mientras que la segunda aborda las cuestiones que afectan de forma más amplia a la comprensión romántica del la obra de arte. La articulación entre los aspectos teóricos e históricos de la época, el análisis de las cuestiones polémicas, el debate,implícito o explícito en el seno del reciente desarrollo historiográfico, son algunos de los rasgos que caracterizan a este libro, aportación original al estudio del...

Discover Dinosaurs Spanish Edition. Dinosaurs were reptiles that lived millions of years ago. It was a long time before there were any people on the earth. Scientists have looked at dinosaur bones and found out many things about what they were like. Nobody knows why the dinosaurs disappeared. People have made pictures to show what they might have looked like. What do we know about dinosaurs?

Vivid photographs and bilingual text explain each food group, revealing how each group is important for good health, how to make healthy choices, and fun things children can do to stay in shape.