Putrefaccin y descomposicin / Rot and Decay

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

Whether it's in cake, pudding, cookies, or ice cream, chocolate is found in many different foods and styles of cooking! Early readers explore the history of chocolate and how it's made in this captivating, Spanish-translated nonfiction title that features vibrant images and fresh, informational text.

¿Cómo de grande es el universo? ¿Podremos algún día viajar a otras estrellas? ¿Qué es un agujero negro? ¡Descúbrelo con este libro! ¿Alguna vez has levantado la vista al cielo en una noche estrellada y te has dejado llevar por la imaginación? Igual en ese momento te has trasladado a mundos que van más allá de lo que podemos imaginar en la Tierra. Algunos con vida, puede que inteligente, y otros completamente inhóspitos e infernales. O quizá simplemente te has preguntado cuántas estrellas hay en la Vía Láctea. Si alguna vez te has hecho alguna de estas preguntas, este libro...

Bridges are a big part of how people get from place to place. But how do they work and how are they built? In this engaging text, readers will explore these important engineering marvels that link places divided by water. Along the way they’ll learn how to build their own model bridge with a step-by-step guide accompanied by full-color photographs of each step. Accessible text illuminates the science behind every span we drive over—and sometimes under!