La naturaleza de la materia (The Nature of Matter)

Read Along or Enhanced eBook: Take a journey into the wild world of reptiles and amphibians! Readers will learn about crocodiles, lizards, snakes, tortoises, and salamanders. Featuring a glossary, index, colorful images and charts, intriguing facts, and clear, informative text, readers will be sure to be enthralled as they move through this engaging, Spanish-translated book.

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.

Presents a line-by-line explanation of the entire United States Constitution, in English and Spanish. Provides a Spanish translation of the Constitution, historical context and student exercises that approximate the decisions made by the Constitution's authors. Written at the fifth grade level.

Simple text and photographs describe dragonflies, including their physical characteristics, behavior, and life cycle.

Desde tiempo inmemorial, la narración y el viaje, como impulsos elementales del ser humano, han mantenido una estrecha relación. Ya en el momento mismo en que surge la escritura establecen un vínculo indisoluble. Muchos viajeros han querido contarnos sus impresiones, y muchos escritores han planteado sus obras en forma de viaje o recurriendo a éste como inspiración.

Este libro regala a cada lector la posibilidad de vivir una vida extraordinaria fundamentada en una realidad interna llena de belleza espiritual. Con 22 consejos para embellecer tu carácter, Valeria Leys te llevará de manera clara a tomar decisiones prácticas que cambiaran tu realidad interna de manera que tu persona, tus actitudes y decisiones puedan reflejar toda tu belleza interior.