How do you build an electric motor?

Question

It's a high school science project.

Answer 1

Here is good link to several types. The author has his own simpler version of what is called the worlds simplest motor.

Don't miss the second group of links on the opening page to more types of elemental motors and good photos.

http://www.coolmagnetman.com/magdcmot.htm

Answer 2

This can actually be done with some wire, a couple of nails and a couple of paper clips.

http://www.techeblog.com/index.php/tech-gadget/how-to-make-a-paper-clip-motor