El ciclo del nitrógeno (The Nitrogen Cycle)

El gran poeta Antonio Machado (1875-1939) dedicó muchos de sus versos a los días azules de su infancia andaluza y al sol de los campos de Castilla, tan enamorado como estaba de la naturaleza. Fue además maestro en tierras de Soria, Baeza, Segovia y Madrid

Meet Ada Lovelace, the British mathematician and daughter of poet Lord Byron. Part of the beloved Little People, BIG DREAMS series, this inspiring and informative little biography follows the colorful life of Lord Byron’s daughter, from her early love of logic, to her plans for the world's first computer program. As a child, Ada had a big imagination and a talent for mathematics. She grew up in a noble household in England, where she dedicated herself to studying. Her work with the famous inventor, Charles Babbage, on a very early kind of computer made her the world's first computer...

What does swimming in a pool, drinking through a straw, breathing in air, and circulating blood all have in common? They all require a form of air or water pressure! Readers will discover the variety of ways that air and water pressure make an impact on our lives and the things in them. This fact-filled, Spanish-translated nonfiction title includes real-life examples and basic experiments to aid in the development of understanding physic and scientific concepts. Readers will be introduced to and learn about Archimedes Principle, atmospheric pressure, vacuums, water density, and hydraulics...

Este libro interactivo, magníficamente ilustrado por Fernando Vicente, acerca a los jóvenes lectores al mundo fascinante y misterioso del antiguo Egipto. Cada doble página es una visita privilegiada a un escenario lleno de magia: la orilla del río Nilo, un mercado de la ciudad de Tebas, la galería de los dioses egipcios, las pirámides, las tumbas de los grandes faraones, y un puñado de juegos y enigmas para aprender y divertirse.