La naturaleza de la materia (The Nature of Matter)

In this biographical book, young readers will learn about the brave life of Harriet Tubman. Readers will discover how Tubman bravely escaped from her life as a slave to cross the Mason-Dixon line into freedom and how she helped hundreds of other slaves into freedom through the Underground Railroad with the help of abolitionists. The vivid images, stunning facts, and supportive text work in conjunction with the helpful glossary, index, and timeline of Tubman's life to give readers an engaging experience as they move from cover to cover. This book has been translated into Spanish.

Read Along or Enhanced eBook: Discover the world of mammals in this delightful nonfiction title! Readers will learn all about different mammals--from primates to marsupials, and rabbits to whales, even omnivores and herbivores. Featuring vivid photos and charts, clear text, and stimulating facts, this Spanish-translated book will have children eager to learn all they can about mammals!

Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

Un lápiz que se dedica a realizar garabatos en todas partes, huye de una goma que lo persigue para borrar sus garabatos, atónita ante el hecho de que el lápiz no sea capaz de expresarse escribiendo o dibujando cosas bellas. La goma decide visitar al sacapuntas y exponerle su rechazo al hecho de que el lápiz no haga buen uso de su poder.

La indiscutida preeminencia de Bécquer en la poesía romántica ha eclipsado a otros poetas de calidad más discutible y de menor difusión, pero representativos de las características ideológicas y estéticas del movimiento romántico. Esta antología pretende ofrecer a los jóvenes alumnos una visión más exacta, por amplia, de la poesía romántica española.

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

It was September 14, 1814, and America and Great Britain were at war. Frances Scott Key watched from the deck of a British ship, where he was being held captive, as cannons exploded around them. After 25 hours, the fighting ceased and Key peered through the clearing smoke, looking for some sign as to the outcome of the battle. Was the American flag still flying? His wartime experience inspired Key to write a poem, which was later set to music and became America’s national anthem. This book tells the story of the inspiration behind our national anthem, which helped transform the flag into a...