Debajo de la Tierra/Debajo del Agua

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

"El cuerpo humano está formado por diversos sistemas muy complejos: el circulatorio, el respiratorio, el linfático, el digestivo, el nervioso ... Y todos tienen que trabajar en perfecta sincronía para mantenernos con vida y funcionando como lo hacemos. Este libro nos lleva en una fascinante travesía a través de nuestra propia esencia, para que podamos no sólo comprender, sino gozar un viaje asombroso a través de la máquina más importante y sorprendente: el cuerpo humano."--Publisher.

INDICE Mi carné deportivo La ropa deportiva Partes de mi cuerpo Mis manos El esqueleto La respiración ¿Dónde estoy? Mis habilidades Cuido mi salud Me gustan los deportes Educación vial Me expreso con mi cuerpo

Mysterious ancient ruins, hidden deep in the jungle of southern Mexico In May 1840, explorers John Stephens and Frederick Catherwood road their mules along a steep, muddy jungle path. They were hoping to find the ruins of an ancient, deserted site in Mexico they knew only from visitors’ accounts. Through the trees, they spied the remains of a crumbling stone palace. Palenque! In the weeks they spent there, the men discovered intricately designed buildings and mysterious glyphs, or symbols. Who built this city? What did the glyphs mean? The questions remained largely unanswered until the...