Unidades de carga en el transporte

BRIMMING WITH THINGS TO FIND, COUNT AND TALK ABOUT, THIS CHARMING PICTURE BOOK PROVIDES HOURS OF PUZZLE-SOLVING FUN. READERS WILL DELIGHT IN DISCOVERING THE SECRETS OF THE SEA, WHETHER SPOTTING WHALES ON THE HORIZON, LOOKING FOR FISH IN A CORAL REEF OR SEARCHING FOR COINS ON A DEEP-SEA DIVE.

Until just over 150 years ago, northern Mexico extended thousands of kilometers farther than its current border with the United States. Many different indigenous groups flourished in that region before the Conquistadors arrived. What we know about their lives and customs is the result of archeological discoveries and the chronicles of the first Spanish priests and soldiers that had contact with them.

Alexander Graham Bell was always trying to invent new things! In this biography that has been translated into Spanish, readers will learn about Alexander's life as a teacher and inventor of such incredible inventions as the telephone, record player, and metal detector. Colorful images, supportive text, an interesting timeline, and a helpful glossary, table of contents, and index combine to give readers an inspiring look into the life of Alexander Bell.

La colección de Chuletas es una recopilación de todos los resúmenes, esquemas, cuadros, sinopsis y apuntes imprescindibles para aprender y aprobar la Física sin dificultades. Los estudiantes tendrán todos los conocimientos necesarios sobre Física para Bachillerato, y los profesores hallarán en este libro un eficaz aliado para que sus alumnos comprendan y aprendan estas materias de un modo más ameno.