Una Mujer inacabada

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 the voyage of Apollo 11, its three astronauts, and details of the mission that put the first man on the moon in 1969.

En El fascinante mundo de... las arañas verás distintos tipos de construcciones, desde fantásticas telarañas a galerias subterráneas. Descubrirás que algunas especies "vuelan". Aprenderás a reconocer a la viuda negra. Conocerás arañas que viven bajo el agua, en el interior de una burbuja de aire... y muchas más cosas sobre el fascinante mundo de las arañas.

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!