La antigua Roma (Ancient Rome)

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.

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...

In Having Empathy, beginning readers will learn about all the ways they can practice empathy in their daily lives. Vibrant, full-color photos and carefully leveled text engage young readers as they discover how they can build character by being empathetic.

Kids use pencils everyday. Read to find out how a pencil is made. Paired to the fiction title Where is My Eraser?.

Este volumen contiene los tres libros que componen la Trilogía de Getafe de Lorenzo Silva: "Algún día, cuando pueda llevarte a Varsovia": Una familia de inmigrantes polacos va a vivir a Getafe. La gente del barrio los acoge con recelo, a diferencia de Laura, que se siente atraída por ellos e inicia una amistad con uno de los hijos, Andrés. ¿Cómo es ese desconocido? ¿Existe un punto de encuentro entre lo real y lo imaginado por Laura? Con misterio y profundidad psicológica, se relata una historia que estimula la reflexión. "El cazador del desierto": Irene siempre ha sido la primera...