El país del presidente eterno

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. Theyll 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. Dont worry, theyll be happy to learn that (hopefully) we have millions of years left!

El símbolo perdido, la novela más reciente de Dan Brown, se convierte ahora en un trepidante recorrido a través de ocultas obras de arte, cámaras y túneles secretos y templos de Washington, la capital estadounidense. Más de cien imágenes fascinantes que se muestran al lector y convierten la lectura en una experiencia de lujo. La aventura de Robert Langdon cobra vida a través de los escenarios menos conocidos de la capital estadounidense, revelando un mundo de misterios antiguos, historias sorprendentes y sociedades secretas. Esta edición especial ilustrada desvela todo un nuevo nivel ...

Mrs. Frizzle's class investigates the disappearance of the salmon from the sea and in the process learn about migration.

The reflection that is presented in this book is born of direct contact with schools that have a multicultural public, its dialogue with the faculty and pupils of these schools, and of the queries raised by its research in intercultural education.