Taller de lectura y redacción, 1

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. They’ll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Don’t worry, they’ll be happy to learn that (hopefully) we have millions of years left!

La historia narra el viaje de un hobbit llamado Bilbo Bolsón (tío de Frodo, uno de los protagonistas principales de El Señor de los Anillos), al que no le gustan las aventuras, a la Montaña Solitaria en busca del tesoro robado por el dragón Smaug años atrás. Todo empieza un inesperado día en el que Bilbo recibe la visita de Gandalf el Gris junto con 13 enanos, entre los que se cuenta a Thorin, Escudo-de-Roble, a cuya familia le fue robado el tesoro. Algunos de los hechos narrados en El Hobbit influirán en los acontecimientos posteriores de El Señor de los Anillos.La inclusión de...

Presents the life story of the Mexican-American labor leader who helped achieve justice for migrant farm workers by creating a union to protect their rights.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...