Nos Divertimos/On All Kinds of Days

Introduces different kinds of light, the properties of light, and how light can create shadows of different shapes and sizes.

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

La historia del arte es uno de los libros dedicados al arte más famosos y populares nunca escritos y ha sido un best-seller durante medio siglo. Durante cinco décadas no ha tenido ningún rival como introducción al arte en su totalidad, abarcando desde las pinturas rupestres primitivas hasta el arte experimental contemporáneo. Atraídos por la claridad y simplicidad de su narrativa, lectores de todas las edades y condiciones han encontrado en el profesor Gombrich al auténtico maestro, que combina el conocimiento y sabiduría con un don único para comunicar su profundo amor por el arte....

With every new feat, there is at least one big failure. Learn about some of the biggest technological feats and failures in human history in this fascinating, Spanish-translated nonfiction title that allows readers to discover some of the technological innovations that have made life easier. Featuring detailed images, charts, and graphs, informational text, and intriguing facts, children will be engaged and captivated from cover to cover! This 6-Pack includes six copies of this title and a lesson plan.

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.