Publisher's Synopsis
A propeller is a kind of screw used to push something through water or air. The screwdriver was not invented until the 1400s. Learn more in All About Screws, one of the titles in the Simple Machines series.
Todo Sobre Los Tornillos - Máquinas Simples
Hardback (01 Aug 2018) | Spanish
Not available for sale
Includes delivery to the United States
Out of stock
