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!

Amusing And Engaging Text Describes How The Color Of An Animal Can Ensure Its survival. Provides Examples Using A Variety Of Animals.

"Contando historias los seres humanos podemos festejar los hondos dolores de la vida." GUILLERMO ARRIAGA Retorno es una calle del caótico y potente México D. F. donde se entrecruzan las pasiones y la supervivencia de sus habitantes. Sus historias abrevan de los dos grandes mitos de la literatura: el amor y la muerte, y están pobladas de personajes contradictorios. Unos ocultan lo que son, otros actúan desde convicciones inquebrantables y los más conviven con la más terrible violencia, entre la búsqueda y el descubrimiento, entre la dignidad y la caída al abismo. Por encima de todo,...

¿QUIÉN NOS VIGILA... Y POR QUÉ? Subimos a Instagram cada momento de nuestra vida, compartimos nuestros pensamientos íntimos en Facebook y vamos dejando nuestros datos personales cuando navegamos en internet. Cada vez que hacemos clic, escribimos, damos un «me gusta», aceptamos una solicitud de amistad, compramos, o incluso cuando vamos andando por la calle, ¡nos vigilan más ojos de los que podemos imaginar! Dentro y fuera de internet, las empresas, los gobiernos y las fuerzas de seguridad van recopilando información sobre nosotros. Dicen que así estamos más seguros, o que eso nos...

This Title Explains What An Ecosystem Is And How The Plants And Animals Within An Ecosystem Rely On And Effect Its Existence. Different Types Of Ecosystems Are Described, As Well As The Food Webs Within Them. How Some Changes To An Ecosystem Can Be Good And How Some Harmful Changes Can Destroy Them. Teaches Students What An Important Role They Can Play In Keeping These Intricate Ecosystems Alive.