ScrewseBook - 2002
We've all seen screws, but how do they work? Why is it easier to screw something into something than to simply push it in? With basic hands-on experiments and clear descriptions, this simple machine is explained.
Publisher: [United States] : Lerner Publishing Group : Made available through hoopla, 2002.
Branch Call Number: eBook hoopla
Characteristics: 1 online resource