Descripción
"Presents information on simple machines with a focus on screws. Explains what a screw is, how screws work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.
Detalles del libro
Formato
Tapa blanda
Páginas
24 páginas
Idioma
Inglés
Publicado
ene. 1, 2009
Editorial
Weigl Pub Inc
ISBN-10
160596039X
ISBN-13
9781605960395