Cosmos en 3D

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

¿Sientes que últimamente se te olvidan las cosas o que no puedes recordar los nombres? ¿Te cuesta a veces encontrar las palabras correctas para expresarte? No te preocupes, este libro es perfecto para ti. Con el paso de los años comienza a decaer el rendimiento físico e intelectual; es la evolución normal de toda persona. Sin embargo, no tienes por qué resignarte: igual que al ejercitar el cuerpo combatimos el envejecimiento físico, al entrenar nuestra mente rejuvenecemos el cerebro y fortalecemos sus funciones. Gracias a los sencillos ejercicios que contiene este libro, preparados...

Learn how division makes planning a birthday party fun and easy! This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will be engaged in reading about what is involved with planning the perfect birthday party, from buying enough food to shopping for the cake and decorations-and learn division along the way! The glossary, index, and table of contents will further understanding of reading and math concepts. The full-color images, practice problems, and math graphs and charts make...

Nature is not always kind. Natural disasters like earthquakes and storms can wipe out cities. Entire cultures and their histories are at risk of being lost. When disaster strikes, some people work to save cultural items. They preserve culture for the future! Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for...

La busca es la primera novela de la trilogía "la lucha por la vida". En ella, Pío Baroja narra la llegada a Madrid de Manuel Alcázar desde el medio rural, sus diversos trabajos y sus tímidas incursiones en el camino de la delincuencia, mezclado con gente de vida oscura, pícaros y hampones, en pugna con sus aspiraciones a una vida decorosa. La presente edición viene precedida de un esclarecedor prólogo a cargo de Ricardo Senabre.