¿Por qué hibernan los animales? (Why Animals Hibernate)

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

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.

La novela de un país que despierta. Una mujer de la alta sociedad, muy bella y muy desgraciada. Un publicitario embarcado en un programa radiofónico que busca a personas desaparecidas. Un magnate con buenos contactos políticos dispuesto a consolidar su imperio. Un joven del Norte que rastrea sus orígenes. En la Barcelona de 1960, las trayectorias de todos ellos se cruzan iluminando ambientes contrapuestos. Estaba en el aire es una historia de sentimientos y búsqueda personal, de periodismo e intrigas empresariales, que transcurre en un momento histórico poco abordado por la narrativa...

Si siempre has querido saber cómo crear aviones de papel de aspecto asombroso y que realmente vuelen, entonces sigue leyendo... El Libro de Aviones de Papel para Niños es una excelente compra para cualquiera que quiera aprender y dominar el arte de construir Aviones de Papel. ¡No solo es adecuado para niños, sino que los adultos principiantes también encontrarán este libro divertido para aprender y construir los 27 diferentes diseños de este libro! Con este libro, serás capaz de construir 27 diseños de aviones de papel de aspecto asombroso que realmente vuelan y que te mantendrán...

Read Along or Enhanced eBook: Learn all about the incredible things your heart, lungs, arteries, and circulatory system do and how to keep them healthy and strong! With vibrant images and informational text in conjunction with supportive diagrams and stimulating facts, this Spanish-translated nonfiction title introduces readers to basic biology and vocabulary.

The greatest thinkers of humanity at your fingertips, in minutes! If you thought you would never be able to understand the essential classic authors, you were wrong! With our "Selected Summaries" collection, you will understand the main ideas of the most important thinkers in a very short time and with little effort. The present volume covers the central axes of this discipline. Among them, the reader will find an analysis of the following: A Journey Through The Economy Of Our Time, History Of The Economy, The Culture Of Satisfaction, A Better Society, among others.