¿Foca o león marino? (Seal or Sea Lion?)

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 ...

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these sea giants face-to-face: The Archelon was similar to a turtle, but its shell was made of crossed rib bone covered in rubbery skin! The Mososaurs had huge pointy jaws and grew to be fifty feet long! The Ichthyosaurs looked a lot...

Presents the life story of the Mexican-American labor leader who helped achieve justice for migrant farm workers by creating a union to protect their rights.