La naturaleza de la materia (The Nature of Matter)

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.

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!

María Sklodovska, conocida años más tarde como Marie Curie, nació en Varsovia en el seno de una familia de escasos medios. Mientras su infancia transcurrió en la Polonia ocupada por los rusos, de joven logró viajar a París para estudiar física y matemáticas, y allí conoció al físico Pierre Curie. Comienza entonces, en un pequeño cobertizo, una de las grandes aventuras científicas de todos los tiempos. Gracias al esfuerzo, la perseverancia y el compromiso con la ciencia, descubrirá el radio, que posee propiedades terribles, pero que, sabiamente dirigido, puede ayudar a curar el...

This complete Spanish translation of the highly acclaimed Isaac Asimov's 21st Century Library of the Universe is ideal for students still developing their English-language skills.

Este texto de la colección "El juego de la ciencia" tiene por objetivo enseñar de forma didáctica una serie de experimentos científicos que sorprenden en el campo de la luz. Específicamente, los chicos aprenderán a crear un arcoiris con mucho ingenio, a comprender cómo funciona el mecanismo de mando a distancia, a elaborar con un estuche de discos compactos una fotocopiadora, a crear un caleidoscopio o un periscopio, a mirar con atención en una cuchara como se distorsiona la luz reflejada en ella, entre otros. Así, con estos libros experimentas el mundo de la ciencia utilizando...

If a person were ever face-to-face with a huge, hungry animal with sharp teeth, they probably wouldn’t care exactly what that animal was! But from a safe location, can we tell whether it was a crocodile or alligator that wanted to take a bite? By examining their jaw structure, teeth, and other physical features, we can easily tell these two animals apart! Graphic organizers and amazing images highlight each animal’s habitat and other small differences between the two fearsome creatures, showing readers just what creature is lurking below the waters.