Cómo funcionan los imanes (How Magnets Work)

Why do we need water to live? Find out in this informative title that explains the importance of water to all living things.

"Adivinancero dos, además del cúmulo de adivinanzas populares, contiene más de cien nuevas creaciones de los autores, quienes se dieron a la tarea de ocultar entre sus versos enigmas novedosos por descubrir. En este segundo tomo se han incluido textos de Sor Juana y Quevedo, quienes a través de juegos de palabras hacen referencia velada a personajes de la época. Una adivinanza siempre representa un desafío a la inteligencia de quienes participan en su solución."--gandhi.com.mx

There is growing concern over how we behave and interact online, from fighting, incivility, rudeness, and even criminal behaviors like cyberbullying, to simply adapting old forms of etiquette to a new landscape. This book, updated from an earlier resource, provides younger readers an introduction to this timely topic, a subject that they are both engaged in forming themselves as "digital natives," and one they also often require guidance in. It informs readers about the polite and productive use of social media networks and mobile platforms and discusses pressing issues of etiquette within...

There are one, two, three, four, five dogs to walk. But there is only one dog walker. Collect data on dogs, their leashes, and their names! This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning how to collect data easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving section provides...