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Everyday examples, such as a motorcycle and a tricycle, demonstrate differences in speed. A simple, Spanish narrative runs beneath the photographs.

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

This fascinating narrative gets under the skin of the world’s tallest buildings! How many people are involved in creating a skyscraper? What environmental factors come into play? What does it take for a skyscraper to function? All these questions and more will be answered as we visit the skyscrapers from New York to Malaysia to China. Students will gain a deeper understanding of skyscrapers and how they shape our world.

Que tienen Adan y Jesucristo en comun? Que tienen Eva y la virgen Maria en comun? Mas de lo que te imaginas! Por medio de las mas impactantes ilustraciones, a todo color, Maura Roan McKeegan ha logrado que la topologia biblica para ninos cobre vida. Al tomar dos historias biblicas sumamente familiares, una del Antiguo Testamento y la otra del Nuevo Testamento, esta obra permite que los ninos puedan ver como las figuras, o tipos, biblicos emergen de las paginas de las sagradas escrituras para, de esta manera, configurar lo que los teologos llaman la topologia biblica. La topologia biblica se...

Why do we need water to live? Find out in this informative title that explains the importance of water to all living things.