Obrero de Construcción

An introduction to what cowboys do, what their day is like, what they wear, what tools they use, and how people can become a cowboy.

Describes, in text and illustrations, the technological challenges involved in the design and construction of skyscrapers, oil rigs, nuclear reactors, and other complicated structures.

Los lectores j©Øovenes encuentran hechos interesantes sobre Saturno el planeta anillado. Descubra de qu©Øe est©Øa hecho o cu©Øantas lunas tiene.

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

The turbulent atmosphere of suburban Barcelona hides the social isolation of a juvenile misfit. A young man fascinated by private detectives becomes entangled in a strange and dangerous case of academic dishonesty.