Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

Este es un libro cercano, una conversación íntima con Edurne, que quiere ofrecer al lector la posibilidad de conocer mejor a una de las jóvenes artistas con más proyección en el panorama musical español de nuestros días. Al mismo tiempo, pretende servir de guía para sus lectores, a partir de las experiencias de superación de la autora y de su filosofía de vida, cuyas claves principales son: la actitud positiva siempre, no ponerse límites, aprender de los errores, levantarse después de cada caída y, de manera muy especial, el afán por aprender y el valor del esfuerzo.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of debugging. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers’ learning experience and show how debugging works in the real world. In this book, readers will find out why a magnet isn't sticking to a certain surface. This nonfiction title is paired with...

Historietas protagonizadas por Facu, un nene de 5 años y su mascota Café con Leche, que es un gato muy travieso. Las aventuras comienzan cuando Facu empieza el jardín y Café con Leche tiene que quedarse en la casa solo. Los diversos episodios muestran escenas de la vida cotidiana tratadas con mucho humor e ingenio. Cada historieta se desarrolla en cuatro páginas.

In an online world where the amount of information seems to increase exponentially even week to week, student researchers can find it an ever-greater challenge to distinguish credible, vetted content from hearsay and misinformation. This book on citing internet sources will help them determine which online sources are trustworthy and which are not. Its lively and engaging instructional tips will help readers successfully negotiate the vast landscape of information out there. They will produce quality research for papers now and beyond in their academic careers with skill and confidence.