Exploremos los minerales de la Tierra (Exploring Earth's Minerals)

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.

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Sitting Bull first went to battle at the age of 14. He grew to be widely respected for his bravery and insight, and became chief of the Lakota nation in his thirties. By the time he met General Custer at the Battle of Little Big Horn, his courage was legendary. Though he soundly defeated Custer, public outrage at the defeat brought thousands of cavalrymen to the area, where it took four more years before the brave chief would surrender. He was forced onto a reservation where he was later killed when police attempted to arrest him.

Divi rtete junto a Juan y Mar a contestando las perspicaces preguntas del sombrero. En este ingenioso libro los acertijos muestran c mo los cient ficos buscan todas las posibles respuestas a un problema y comparan una respuesta con la informaci n que ya tienen, c mo eliminan lo que no encaja en una situaci n planteada y, as , llegan a la respuesta correcta. quieres hacer trucos con sombreros?

Los mundos de juego de la red se han fusionado, todos juegan en el mismo sitio a la vez, reina el caos absoluto y, aparentemente, el responsable es elrubius... El secreto parece estar en una torre misteriosa y alguien se empeña en que nuestro héroe llegue hasta ella. Puede ser una trampa... Virtual Hero, extraordinario éxito de ventas tanto en España como en Latinoamérica, fue el primero de la serie; La torre imposible es el siguiente título de una saga de cómics protagonizados por elrubius. Caracterizado como un héroe de videojuegos, le acompañarán en este nuevo episodio muchos de...

Published over 30 years ago, Nine Days to Christmas remains fresh and relevant. Ceci's first Christmas posada party and pinata have made her Mexican town come alive for generations of readers. "The youngest child will be completely transported by this lovely story".--The Atlantic. Three-color illustrations.