Cómo funcionan las ruedas y los ejes

Storms are a fascinating topic and a great way to get young readers interested in science. This series uses simple text and dramatic, full-color photos to take students inside nature's powerful and deadly storms. Each book explains one kind of storm- what it looks like, how it forms, the damage it can do, and how people can protect themselves from danger.

Esta obra de Miguel de Unamuno es uno de los ejemplos clásicos más eminentes de la novela moderna. La ficción deja aquí de ser un puro vehículo narrativo, transmisor de historias, para convertirse en un universo textual de fecundas sugerencias. Unamuno cuenta de manera extraña su historia, inventando su nuevo género narrativo, la “nivola”, donde los personajes hablan en monólogos propios durante la obra. Agregando extraños sucesos literarios (como el encuentro del personaje con su creador o el monólogo del mismo perro) convierten este libro en un tesoro literario. El título,...

Las páginas de este libro están dedicadas a los descubrimientos realizados en 1979 por la NASA sobre la Sábana Santa y en los que Benítez intenta reconstruir los últimos días de Cristo. Benítez inicia su contacto con la figura de Jesús de Nazaret, otro de los puntos clave en la vida del periodista e investigador navarro.

Bike riding is a lot of fun, but it can also be dangerous. Read about how people have made cycling safe over the years. Learn how bicycles have changed over time and how bike parts, equipment, and trails make cycling safer. Created in collaboration with the Smithsonian Institution, this Spanish book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from Smithsonian employees...

From Mexico to the tip of South America, Latin America features varied scenery, including deserts, grasslands, plains, and mountains. Some are extreme: The Andes is the world's longest mountain range, and the Atacama Desert has not had rain for over 400 years! Latin America's remarkable landscape is an essential factor in its surprisingly different climatic zones. This insightful volume offers a comprehensive tour of the many vibrant countries of this fascinating region, highlighting its most striking areas in vivid photographs. It is also an inviting exploration of geography, natural...