La Pelota Perdida

Insectos is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

Extraordinario documento histórico. Un diario de viaje sobre la primera circunnavegación de la Tierra en 1522, realizada por Fernando de Magallanes y Juan Sebastián Elcano. Adaptación realizada para lectores a partir de 13 años. Esta adaptación sigue el texto original, pero no es un resumen ni una mera ¡ transcripción modernizada. Reduce pasajes o informaciones irrelevantes que harían premiosa la lectura. La mayor intervención afecta a la sintaxis. La hechura y la extensión de la frase original se aligeran para facilitar la lectura fluida. Los diálogos indirectos pasan a ser...

In an entertaining way, shows how to add, subtract, multiply, and do long division without a calculator.

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.