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

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.

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.

Aislado por mar, desierto y cordillera, Chile es un lugar privilegiado por sus paisajes y pájaros sorprendentes. El libro que tienes en tus manos es una invitación a adentrarse en el mundo de las aves que habitan en el valle central de nuestro país, recorriendo su geografía desde la cordillera de los Andes hasta el mar. Este libro presenta a los PÁJAROS CHILENOS típicos de Chile Central y sus hábitats. A través de ilustraciones y diferentes relatos, te permitirá descubrir sus variadas características y comportamientos, y así explorar la forma de vida de nuestros compañeros...

Continuamente, y casi desde que nacemos, recibimos mensajes sobre el amor que ayudan a crear falsos mitos: que para ser felices tenemos que encontrar nuestra media naranja, que los celos son una muestra de amor... Cuando la realidad choca contra estos falsos mitos se produce una frustración que provoca infelicidad y que, en casos extremos, puede derivar en violencia de género. En este libro encontrarás una serie de retos que te ayudarán a reflexionar. A descubrir tus propias respuestas. Enfréntate a ellos sin miedo, atrévete a pensar a tu manera. Porque para que la sociedad avance...

Introduces the former Duke University basketball star, Grant Hill, who now plays for the Detroit Pistons.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...