Cómo podemos utilizar el tornillo?

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

Eco-Friendly Energy Is Explained. The Most Current Information Is Provided While Establishing The Understanding That It Does Not Take Much To Make The World A Better Place.

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

Bring history home and meet some of the world's greatest game changers! Get inspired by the true story of a famous scientist who changed our understanding of physics forever. This biography series is for kids who loved Who Was? and are ready for the next level. In 1974, Stephen Hawking shook the world of physics. His theory on black holes went against everything the science community accepted as fact. How did he make such revolutionary discoveries? From a childhood spent building model airplanes to recognition as one of the greatest scientists of his time, Stephen's genius and endless...

Sarah es la primera persona en su familia que no ha nacido como esclava. Pero ser libre no significa que Sarah no deba trabajar. Cocina, limpia, recoge algodón, lava la ropa y cuida de niños. Y cuando tiene que trabajar, Sarah se recoge el pelo. Un día, ¡se le empieza a caer! En lugar de darse por vencida, Sarah empieza a probar y mezclar productos y acaba inventando algo mejor que cualquier champú o aceite que haya probado... Gracias a este producto milagroso, decide crear su propia empresa.

Adaptación para el público infantil y juvenil de la novela escrita por Juan Ramón Jiménez. La adpatación corre a cargo de María Jesús Chacón que ya adaptó la obra El lazarillo de Tormes. Juan Ramón Jiménez, se inspira en la vida de su pueblo, Moguer; su personaje es Platero un burrito que lo acompaña en sus numerosas anécdotas, llenas de poesía. Nota: este libro es gratuito. Si al descargarlo se solicitase una tarjeta de crédito, pulsar en el botón "descargar muestra", ya que se descargará el libro completo.

Describes the U.S. Army Rangers, including their missions, vehicles, weapons, equipment, and duties. Written in English and Spanish.