Description
"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.
Détails du livre
Format
Broché
Pages
24 pages
Langue
Anglais
Publié
janv. 1, 2009
Éditeur
Weigl Pub Inc
ISBN-10
160596039X
ISBN-13
9781605960395