Como yo los veía

It doesn't take a lot to conserve electricity. Taking action can be as simple as turning off the lights when you leave a room or using "people power" instead of cars to get around. Kids learn this and more about what they can do to help in 10 Things I Can Do to Save Electricity. Now in Spanish.

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...

Los misteriosos sucesos que abordan la realidad humana no dejan de impresionarnos. El limitado conocimiento de los acontecimientos se siguen manifestando como un milagro sin importar la ciencia que busque darle explicacion a cada cosa. En esta historia breve y no menos interesante por dicho detalle, encontraremos un evento, sin duda, admirable y fantastico.

Introducción, traducción y notas de T. de la A. Recio y A. Soler. Intr. gen. de J. L. Vidal. Revisada por J. González, J. L. Moralejo y E. del Barrio.