Arizona, el Estado del Gran Cañon

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

Want to make cool apps and games, but don't know where to start? This straightforward guide gives you everything you need to start making your own fun programs, using simple step-by-step guides. Learn the programming languages Scratch and Python to create games, animations, utilities and more.

La Santísima y Vera Cruz de Caravaca fue robada misteriosamente durante las fiestas de Carnaval de 1934 y hasta ahora nadie ha podido averiguar su paradero. Sus oscuros y discutidos orígenes y su extraña desaparición llenan su historia de enigmas sin resolver. Esta novela, a medias policiaca y a medias histórica, nos lo muestra con las aventuras de un caballero templario del siglo XIII y un inspector de policía del siglo XX, unidos por los misterios de la Cruz de Caravaca en los tiempos turbulentos de nuestra Guerra Civil de 1936 - 1939. La intención del autor al escribir esta...

Alexander Graham Bell was always trying to invent new things! In this biography that has been translated into Spanish, readers will learn about Alexander's life as a teacher and inventor of such incredible inventions as the telephone, record player, and metal detector. Colorful images, supportive text, an interesting timeline, and a helpful glossary, table of contents, and index combine to give readers an inspiring look into the life of Alexander Bell.