Experimentos con la luz

La vida de Alejandro García-Duran es intensa y desbordante. En estas páginas se pretende rescatar al Alejandro con conciencia social, al justo, al padre Alejandro de Las Arenas, al escolapio incómodo, al padrecito callejero, a Chinchachoma...Perfiles diversos que definen su apostolado. A lo largo de ocho capítulos que recorren la trayectoria vital en diversos escenarios geográficos, intentamos acercarnos al perfil de los callejeros y, finalmente, damos voz, a través de sus testimonios, a algunas de las personas que compartieron con él la difícil tarea de luchar por los niños y niñas ...

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Before Texas was part of the United States, it was a nation of its own. After gaining independence from Mexico in 1836, Texas declared itself a republic. Interesting features, including a timeline and a map, guide readers through this conflict-filled period of Texas history.

Packed with lively illustrations and fascinating flaps, this book is bursting to reveal amazing secrets."