The process of building an electric motor

     To make an electric motor you will need a coil, two paper clips, tape, two disc magnets, a cup, and wires. 

•  First put the wire around a cardboard tube to make a coil.          
• Then spin the wire around the loops on each side of the coil.      Leave about five centimeters of wire on each end of the coil.     
• Hold the coil on the edges and sand the top half of each end of the wire. This blocks the electric current instead of reversing it.  
• Unfold the two paper clips from the middle, and make a hook in one end of each paper clip to hold the coil.                                  
• Place one disc magnet at the top of the cup and the other at the bottom. The magnets should remain in place when the cup is turned upside down.                                                                 
• Tape the paper clips to the side of the cup. They should be the same height and should keep the coil from hitting the magnet.    
• To test your coil, flick the top of your coil lightly with your finger. It should be able to spin freely without wobbling or sliding to one side.                                                            
•  Adjust the ends of the wire and hooks until your coil spins freely. 
• Use alligator clips to attach one wire to each paper clip.
•  Attach the free ends of the wire to the terminals of the battery.
• Stop the coil and spin it in the opposite direction. Record your observations.
• If the coil doesn't keep spinning check the ends of the wire.
• If you removed too much of the wire, color half of the wire with a permanent marker.                                      
•  Switch the connections to the battery and repeat the steps.