The Fort On Fourth Street
A Story About The Six Simple MachinesBook - 2013
Building a fort in the backyard, a grandfather and granddaughter get help from six simple machines: lever, pulley, inclined plane, wheel and axle, screw, and wedge.
Publisher: Mt. Pleasant, SC :, Sylvan Dell Publishing,, 
Branch Call Number: E
Characteristics: 1 volume (unpaged) :,illustrations (chiefly color) ;,27 cm