El libro de las rocas y los minerales

Grandes ideas, explicaciones sencillas Con un lenguaje claro, El libro de la política ofrece concisas explicaciones que desbrozan la jerga académica, esquemas que hacen sencillas las teorías más complejas e ingeniosas ilustraciones que juegan con nuestra comprensión de la política. ¿Debe ser derrocado un gobernante injusto? ¿Es la democracia la mejor forma de gobierno? ¿Puede ser justa una guerra? A lo largo de la historia, estas y otras preguntas acerca de cuál es el mejor modo de gobernarnos han suscitado respuestas de grandes pensadores que hoy siguen dando forma al mundo. La...

Repleto de ilustraciones en 3D, Animales acerca al lector a un mundo en constante evolución para descubrir cómo vive y cómo se relaciona con su entorno cada habitante del planeta. Animales está lleno de divertidas curiosidades y datos relevantes de especies de todo el reino animal: desde las alas de un espectacular albatros a la majestuosidad del tiburón blanco, el libro es un repaso por todas las especies que conforman cada ecosistema por remoto que sea. Descubre todo tipo de animales, desde la diminuta pulga de agua hasta la gran ballena azul. Observa la vida animal en sus detalles...

If you have ever dreamt about becoming the next Mark Todd or Zara Phillips, then How to ... Horse Ride is the perfect guide to set you on course for success. This book shows you 'how to' with simple step-by-step photographs and easy-to-follow instructions. From basic exercises and grooming techniques to more advanced cantering and jumping. The final section takes a look at the fun you can have with your riding, from the thrill of the show, to the discipline of dressage. Saddle up and learn to ride with this exciting new How to.... You'll be galloping your way to the gymkhana before you know...

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...

If you lived long ago, how different would life be from how it is today? Many things are different, but many things are the same! Introduce students to the concept of change as they compare homes, schools, jobs, technology, and transportation from the past and present. This primary source book uses dynamic primary source images and supportive text to integrate social studies content and language arts instruction. The accessible table of contents, glossary, and index work to aid students in better understanding the content. Aligned to state and national standards, this Spanish book will engage ...

"Amphibians have some of the most interesting life cycles on Earth. The metamorphosis frogs, toads, salamanders, newts, and caecilians go through has many steps that readers need to understand and remember. This book offers a concise overview of the general amphibian life cycle as well as representative examples of the many species within the animal group. Most importantly, the accessible language is paired with diagrams of the steps of the life cycle to augment readers' understanding of this topic often found in the science curriculum."

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...