El sistema óseo (The Skeletal System)

In 1789, George Washington became the first president of the United States. With over 100 black-and- white illustrations, the fascinating story of "the father of our country" comes to life in Spanish - revealing the real man, not just the face on the dollar bill!

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...

¿Qué animal tiene espinas agudas, boca en forma de trompeta y cuerpo rayado que parece lleno de hojas? Busca más pistas dentro del libro para averiguarlo. Cuando resuelvas el misterio, no solo descubrirás al animal, sino que también aprenderás dónde vive, qué come y muchos otros datos fascinantes.

Discusses the physical characteristics of great white sharks that combine to make them such able predators.