El Cid Campeador

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther. This 6-Pack includes six...

Describes the life and work of the scientist who was persecuted by the Inquisition for his views of the universe.

Discusses the role of the gases surrounding Earth and the relationship of the atmosphere to weather. Presented in English and Spanish.

Este libro tiene 40 páginas para colorear con líneas extra gruesas que sirven para reducir la frustración y mejorar la confianza. Este libro ayudará a los niños muy pequeños a desarrollar el control del lápiz y ejercitar sus habilidades motoras finas.