Cárceles sin rejas

For thousands of years, militaries around the world were limited to male soldiers. However, throughout history, brave women have stepped out of the background and onto the battlefield. This biographical text covers the important women who’ve broken ground in the military. Famous historical figures such as Joan of Arc, Clara Barton, and Florence Nightingale are covered in depth, while the stories of modern-day heroes are presented to show how women are still affecting change on the front lines. A comprehensive timeline, fact boxes, and historical and modern images complete this...

The Internet can be one of the most useful tools for young learners. It can also open them up to dangerous situations and inappropriate content. This book teaches readers how to use the Internet responsibly. It addresses relevant issues, including social networking, online gaming, and cyber bullying. Through age-appropriate text, readers will learn how to avoid strangers and keep their personal information safe. “Tell Me More” boxes give advice for complicated online situations. Color photographs and a detailed glossary support the text. Supplemental websites provide opportunities for...

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of money's history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.

“Este libro está escrito para ti, curioso de cualquier edad.” Esta es una de las primeras líneas de El mundo de Max. La ciencia para todos. Vive con Max sus aventuras y descubrirás a través de sus ojos que el mundo está lleno de maravillas. Aquí encontrarás las explicaciones a muchas cosas que suceden a tu alrededor y además podrás comprobarlas tú mismo con los numerosos experimentos sobre la materia, la energía, la luz, la percepción, la electricidad, etc. que se proponen en cada capítulo. ¿Te atreves a conocer cómo es tu mundo en realidad? Si es así... ¡Bienvenido a El...