La naturaleza de la materia (The Nature of Matter)

A force is a push, a pull, or a turn. Every force has an equal and opposite force. Forces are always with you! They are all around us. Learn about forces with this Spanish science reader that features easy-to-read text. Nonfiction text features include a glossary, index, and detailed images to facilitate close reading and help students connect back to the text. Aligned to state and national standards, the book also includes a fun and engaging science experiment to develop critical thinking and help students practice what they have learned.

Introduce students to immigration in America in the 1800s, and how it affected the United States. With this Spanish-translated book, readers will discover topics such as Ellis Island, Angel Island, and assimilation. Primary source images, fascinating facts, a glossary, and other features keep students engaged and help them better understand the social studies content.

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.

Este libro contiene información ilustrada que describe una época, a fines del siglo XIX, muy importante en la historia de México. En ese tiempo Porfirio Díaz fue presidente de la República y su ejercicio del poder dio nombre a un periodo de la historia mexicana conocido como Porfiriato. Durante su mandato, la economía mexicana se estabilizó y el país experimentó un desarrollo económico sin precedentes: se invirtió capital extranjero en la explotación de los recursos mineros; la industria minera, la textil y otras experimentaron una gran expansión; se construyeron vías férreas y ...

What keeps objects from floating out of your hand? What if your feet drifted away from the ground? What stops everything from floating into space? Gravity. As in his previous books, Redwoods, Coral Reefs, and Island, Jason Chin has taken a complex subject and made it brilliantly accessible to young readers in this unusual, innovative, and very beautiful book.

By day, Zoe Zhang is a fourth-grade bunny who loves reading books and playing soccer. By night, she's Robin Hoodie, a hero bandit who steals from the greedy and gives to the poor. When a dishonest city official bullies her family, she and her band of Merry Mates fight back. Kids will be captivated by this fast-paced adventure story that will appeal to reluctant readers. This short, 32-page chapter book features colorful, lively illustrations to capture the attention of kids who enjoy stories about underdog superheroes.

What's hidden in the woods? Look closely through three colored transparent sheets to discover hidden secrets. Start with green and nothing moves. As if by magic each sheet shows animals and plants coming to life. Watch nature's surprises emerge in front of your eyes.