Técnico electricista 3 - Magnetismo

Following the stock market crash of 1929, the United States plummeted into the Great Depression and unemployment soared. But when Franklin D. Roosevelt took office the following year, he enacted federal programs, financial regulations, and public works projects to boost the economy and put America back together. In this instructive volume, students will discover fascinating facts and little-known details about this series of reforms, called the New Deal. They'll also be able to choose from a variety of hands-on projects, from map-making to writing and performing a speech to designing and...

Este libro ilustrado para niños describe el ciclo de vida de la mariposa monarca, desde que la oruga sale del huevecillo, antes de convertirse en una crisálida, hasta que se transforma en adulto.

Este libro de Biología y Geología esta dedicado a los alumnos de 1o de Bachillerato, su contenido esta dividido en seis bloques temáticos: La geología y la biología como ciencias naturales, Estructura y dinámica de la Tierra, Los materiales de la Tierra, Uniformidad y diversidad de los seres vivos, Mantenimiento de la vida y Perpetuación de la vida.

"Amelia Earhart was a woman of many ""firsts."" In 1932, she became the first woman to fly solo across the Atlantic Ocean. In 1935, she also became the first woman to fly across the Pacific. From her early years to her mysterious 1937 disappearance while attempting a flight around the world, readers will find Amelia Earhart's life a fascinating story."