Adivinanzas, Risas y Chanzas

En 1919, el Congreso norteamericano aprobó una ley por la que se prohibía la fabricación y venta de bebidas alcohólicas en los Estados Unidos. Esta ley, conocida como Ley Seca, dio lugar a la mayor proliferación de bandas mafiosas y crímenes de sangre que haya conocido la historia de ese país. El escritor y periodista Walter Noble Burns (1872-1932) –autor de varias obras biográficas sobre legendarios personajes del Oeste, como The saga of Billy The Kid (1926), que hizo famoso al bandido adolescente, y Tombstone (1927), la vida del célebre marshall Wyatt Earp–, vivió en Chicago...

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

Martin Luther King, Jr. believed in fighting for Civil Rights for all people. In this Spanish-translated biography, readers will learn about his inspirational life as he fought for equality of African Americans through nonviolence. The rich photos, supportive text, helpful glossary, timeline, table of contents, and index give readers important information for understanding King's fight against Jim Crow Laws.