The screw, another of the simple machines, converts a circular motion (the turning of the screw) into a linear motion. It also lets you amplify the force a great deal, since turning the screw only moves the end of the screw a small amount. This classic wooden model offers children a basic concept of the laws of physics. Desktop sized.
Product Type: Simple Machines
Recommended Grade: Grade 4+
Recommended Age: 9+ Years
GRP:ERGO