Agujeros negros (Black Holes)

Un libro que presenta, de forma amena pero muy rigurosa, a los pensadores, científicos, artistas e inventores que cambiaron la historia del mundo. Los genios nacen, se hacen y ahora también... ¡se leen! Veinticinco cuentos, desde la Antigüedad hasta la actualidad, que presentan a los pensadores, científicos, artistas e inventores más importantes del mundo y los descubrimientos que cambiaron el curso de nuestra historia. Una visión global de la historia del ser humano y de los principales descubrimientos científicos y movimientos culturales. ¿Qué descubrió Arquímedes mientras se...

¿Sabías que los dragones de Komodo son los lagartos más grandes del mundo? Usan la lengua para oler a otros animales. Aprende estos y otros sorprendentes datos en Yo soy el dragón de Komodo. Did you know that Komodo dragons are the largest lizards in the world? They use their tongues to smell other animals. Learn these and other impressive facts in I Am a Komodo Dragon.

English-Spanish bilingual edition teaches young children simple manners and kind behavior. When children are kind, courteous, and respectful, people enjoy being around them and reciprocate with the same behavior. Use this English-Spanish bilingual book to teach manners and help young children understand the importance of showing politeness, speaking kindly, using basic courtesies (“please,” “thank you,” “excuse me”), and respecting the feelings of others. A section at the back of the book, in both English and Spanish, provides questions for discussion, scenarios, and role-play...

From war and death to school and gender equality, the Sociedad series discusses many serious issues in a way that can be easily understood by children. Although many of the situations and examples are specific to Mexico, these books can be applied to a general readership, particularly one of Hispanic origin. Reflecting on modern sciences, particularly biotechnology—from its limitations to its advances—this perceptive study answers many questions concerning cloning and genetically modified organisms, such as Why do scientists work in these arenas? What are the benefits of this technology?...