Title: Sube y Baja
Subtitle: Un Libro Sobre Poleas (Ciencia Asombrosa)
First published: January 30, 2007
Description: Ciencia asombrosa: Las maquinas sencillas (Amazing Science: Simple Machines)-Our best-selling Amazing Science series is now available in conversational Spanish. Simple machines are simply wonderful. Dissect the science behind these useful tools to get a better handle on the physics of fun and function.
Subjects: Juvenile Nonfiction, Nonfiction, Pulleys, Juvenile literature, Machinery, Machinery, juvenile literature