26 Problemas resueltos de navegación astronómica para capitanes de yate

Este libro ilustrado para niñitos muestra como duermen los papás de los leones, los caballos, los murciélagos, los flamencos, las tortugas, los erizos, y los seres humanos.

Me llamo Agatha Christie, aunque todo el mundo me conoce por la Reina del Crimen... No! No creis que soy una asesina. Todo lo contrario, en realidad soy muy pacfica, pero me dedico a escribir novelas policacas y relatos de misterio.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Illustrations and text present the history, geography, people, politics and government, economy, and social life and customs of Arizona, the Grand Canyon State.