Simple Machines

  • Simple Machines
    Simple Machines
    By Vijaya Bodach

    Photographs and simple text describe a number of simple machines and how they work.

  • Simple Machines
    By David John Ward

    There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw. Can you adjust a seesaw to lift an elephant? What happens when you combine two or more simple machines? Read and find out!