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.

This complete Spanish translation of the highly acclaimed Isaac Asimov's 21st Century Library of the Universe is ideal for students still developing their English-language skills.

¿Sabes que el Sol es un punto? Y también cada una de las estrellas que brillan en el cielo, y un balón, y un trozo de papel, y cada gota de lluvia... Asimismo, la estela que deja un avión-reactor en el cielo es una línea, igual que un hilo, un espagueti o las líneas de la mano. ¡Ah! Y, sin duda, para hacer un garabato, necesitas la línea, porque el garabato es una línea. Las 10 prácticas que propone este libro son fáciles y divertidas de realizar, y te permitirán descubrir las características del punto, la línea y el garabato, y las múltiples formas de representarlas....

MODELS OF QUALITATIVE RESEARCH IN SOCIAL EDUCATION AND SOCIO CULTURAL ANIMATION - Practical applications - This book tries to combine the reflection on a concrete methodology, and its practical application to the ambience of the social field. The author wants to harmonize in this way, “knowledge” with “the knowledge to do” and invites us and to involve the heart as well as our intelligence in the work that we carry out. The book offers valuable guides and it provides hints to carry out quality research.

(back cover) Hablemos de esto! A menudo, los ni os demasiado tmidos tienen preocupaciones y se sienten incomprendidos. ERES T?MIDO? ayuda a ni os y ni as a comprender que la timidez puede vencerse de muchas maneras. Ning n ni o debiera avergonzarse por ser tartamudo o por enrojecer cuando se le hace una pregunta. Todo lo que necesitan es aprender a enfrentar la situaci n adecuadamente. ERES T?MIDO? explica a los ni os que su timidez ir y(c)ndose poco a poco siempre que sigan tratando de expresarse ante los dem s."