El amor de mi muerte

Introduces the concept of heat, how it's created, how it affects materials around it, and how heat is used.

¿Qué hizo que una familia latinoamericana abandonara su tierra natal para partir con sus tres hijos, de diez, trece y quince años, a tierras del continente africano? Siga las peripecias y aventuras de la familia Jacobi Mangold durante quince años de servicio misionero en el Hospital de Leprosos de Masanga, Sierra Leona; el Hospital Scheer Memorial en Nepal, al norte de la India; y el Hospital Misionero de Yuka, Zambia. Comparta su período de adaptación a una vida sin electricidad, televisión ni otras comodidades básicas, y su angustia al sufrir un ataque al hospital por fuerzas...

This complete Spanish translation of the highly acclaimed Isaac Asimov's 21st Century Library of the Universe is ideal for students still developing their English-language skills.

Five and counting! So far, astronomers have discovered five dwarf planets in our solar system. Pluto, which was once thought of as the ninth planet, is today classified as a dwarf planet. This book looks at the current dwarf planets, characteristics, size, and orbital patterns, as well as the three rules scientists follow to characterize these tiny, round space objects. Every day new discoveries are being made. Who knows how many dwarf planets we will find in the future! This book will allow students to understand that patterns in the natural world can be observed, used to describe phenomena, ...