¡Sin resolver! Lugares misteriosos

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

Ice cream is a solid. But when it melts, it becomes a liquid. Solids can change to liquids and back again by melting and freezing. Read this Spanish-translated book to learn what happens when heat and cold and solids meet.

Invite readers along on the preparations for a soccer tournament! With informational, Spanish-translated text, vibrant photos and charts, children are engaged from cover to cover while utilizing mathematical skills to increase understanding of all aspects of soccer, including sportsmanship and tournaments.

FIND OUT HOW PEOPLE BECAME KNIGHTS, AND WHAT KINDS OF WEAPONS THEY USED AND WHAT KNIGHTS DID WHEN THEY WERE NOT FIGHTING. THIS NEW USBORNE DISCOVERY BOOK, WITH AMAZING PHOTOGRAPHS AND COLORFUL ILLUSTRATIONS, EXPLORES IN FASCINATING AND SOMETIMES DESCRIPTIVE DETAIL HOW KNIGHTS LIVED, DIED, AND EVENTUALLY DIED OUT ALTOGETHER.

Este libro constituye una introducción a la psicología social. Proporciona la teoría y los instrumentos de análisis indispensables para conocer y dominar los fenómenos sociales. Está concebido como una herramienta pedagógica para los estudiantes de primer ciclo de enseñanza superior y de escuelas universitarias, pero se dirigen también a educadores, psicólogos, asesores psicopedagógicos, trabajadores sociales y a todos aquellos interesados en las ciencias humanas y sociales.

"Un libro elegante en forma y fondo, con una temática que se ha explorado muy poco en los libros para niños. Hay seres tan pequeños que no es posible verlos a simple vista. Aunque están por todos lados, desde el fondo marino hasta las sábanas, Ésólo podemos observarlos a través de un microscopio! Este libro pone al alcance de todos el misterioso universo de los organismos unicelulares, los protozoarios y los paramecios. En cada página doble éstos crecen hasta 150 veces y nos muestran sus poblados ecosistemas microscópicos. Los autores describen, con un lenguaje científico preciso...

El flamenco no ha gozado históricamente de un interés sistemático como objeto de estudio e investigación. Conviene pues recordar que es un verdadero sistema musical, un género artístico con una historia documental;