Florence Nightingale

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

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

Ganador del I Premio Los Odres de poesía, el cubano Alexis Díaz-Pimienta nos muestra un verdadero festín poético de lenguajes y metros. Reflexión sentimental sobre la identidad, las caretas, el fingimiento. Todo rostro es, en esencia, un disfraz que nos protege de los otros y de nosotros mismos.

Planck consideró como tarea científica suprema la búsqueda de las leyes que rigen el absoluto, el invariante oculto en la realidad externa. Le cupo el privilegio de descubrir uno de esos elementos universales: el quantum de acción, la constante h.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

LA BIBLIA MAS ESPERADA POR LOS CHICOS DE HOY! Aqui esta la historia mas apasionante de todos los tiempos. En el lenguaje mas facil y aceptado hoy dia por adultos y ninos, la NUEVA VERSION INTERNACIONAL, la Biblia Palabritas de Vida llega repleta de apasionante aventura, sabiduria y color para introducir a chicos y grandes en el transcurrir de la historia de amor y de accion mas grande de todos los tiempos: La relacion de Dios con su mas hermosa y preciada creacion, el hombre . Contiene 132"