Aviones del pasado (Planes of the Past)

Aircraft carriers are truly the fortresses of the sea! Students will get an inside–out view of these incredible floating cities, from how they are constructed to how they function as important parts of a country’s defense. Students also will learn about the various aircraft that are on board and the crew that keeps aircraft carriers in ship shape!

Esta obra tiene como finalidad permitir al lector la fácil identificación de algunas de las plantas nativas o naturalizadas de las Salinas y Perisalinas del Chaco Árido. Se ha tenido en cuenta que la utilizará público culto, docentes, estudiantes, amantes de la naturaleza, productores, etc., que en general no tiene formación botánica. Es por eso que se ha tratado de evitar los términos técnicos, aunque esto no siempre ha sido posible. Asimismo se consideró que los trabajos botánicos mayormente llevan una cantidad de información solo útil para futuras investigaciones en taxonomía ...

"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 pterosaurs face-to-face: The Quetzalcoatlus had wings that spanned the length of a school bus! The Dsungaripterus had a bony crest on its head! The Eudimorphodon had a diamond-shaped flap at the end of its long tail! Plus you'll ...

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Los niños adoran las palabras, y si son rimadas, mejor. Con esta antología descubrirán la magia de los versos. Mi primer abecedario, mi primer atlas... Siempre hay un primer libro que nos ayuda a descifrar el universo. Con Mi primer verso los más pequeños descubrirán que en la poesía hay otros mundos, que detrás de cada palabra se esconden planetas paralelos. Poemas de Lorca, Neruda o Machado acompañados de maravillosas ilustraciones en un libro perfecto para que toda la familia explore las sensaciones que contiene cada verso, con palabras que les harán cosquillas en la lengua y en...