Arboles de globos / Balloon Trees

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.

Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams.

Aunque soy famoso gracias a mis cuadros, he de decir que parte de mi celebridad la debo al hecho de haber conocido a muchas personas interesantes y de haber vivido muchsimos aos, en una poca -buena parte del siglo XX- que ha sido una de las ms prolficas desde el punto de vista cultural. Viene a ser como terminar un viejo libro y empezar otro repleto de nuevas ideas, con una mirada puesta en el futuro. Los nuevos representantes de la cultura hemos aprendido de nuestros predecesores, pero tambin hemos puesto en duda sus conocimientos y hemos buscado un nuevo lenguaje ms acorde con los tiempos...

Deforestation, hunting and global warming have endangered countless species. The orangutan, okapi, giant panda and the blue whale are just some of the 30 species on the brink of extinction that are featured in this book. They need your help. The International Conservation Society illustrates how many of these species are left in the wild, and the latest status regarding their natural environment. You'll learn how you can aid endangered species and help sustain the ecosystems that give them life.