Florence Nightingale

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

El Mayflower es un barco que ha llegado a ser célebre en la historia de los Estados Unidos porque en 1620 transportó desde Inglaterra al grupo conocido como "los peregrinos", quienes serían los primeros colonos europeos en establecerse en Norteamérica. Ellos zarparon desde el puerto inglés de Southampton y bautizaron como Nueva Inglaterra a la tierra que los acogió. Como señala este libro, el Pacto del Mayflower designa el acuerdo que los hombres adultos de esta comunidad firmaron a bordo del barco para fijar criterios generales que sirvieran como fundamento para el gobierno de la...

Now available in Spanish bilingual editions, this best-selling series offers big, brainy science for the littlest listeners. Accurate enough to satisfy an expert, yet simple enough for baby, this clever board book explores the ups and downs of gravity. When baby drops food from a high chair, why does it fall? Beautiful, visually stimulating illustrations complement age-appropriate language to encourage baby's sense of wonder. Parents and caregivers may learn a thing or two, as well!

Gender studies of Spain has thus far focused almost exclusively on women, leaving the social and political history of male homosexuality virtually untouched. "'Los Invisibles'" fills this significant gap in the study of Spanish culture by analyzing the effects of medical and legal regulation on male homosexuals. Drawing from the discourse of medical history, Richard Cleminson and Francisco Vazquez Garcia evaluate the impact of psychiatry, education, race, and the growth of gay subcultures on cultural representations of homosexuality in this pioneering study.

Ricardo the pack rat has collected so much stuff that his rat hole is full. Includes facts about pack rats.

As the COVID-19 pandemic has spread around the world, it's left many adults and children searching for answers about how they can stay safe. By focusing on facts presented in a relatable way rather than fear, this illustrated guide to health and safety gives children the tools they need to understand what's happening in the world and to discover how they can become a virus warrior. Facts about coronaviruses are paired with essential information about social distancing, personal hygiene, and the things we can control in uncertain times, creating a learning experience designed to reduce...