Re: how is electricity conducted?

Electricity is the flow of electrons.  It flows best in materials that 
have loosely bound electrons in their atoms.  That is true of most metals, 
and of those metals Silver is about the best with Copper next and then 
Aluminum.

Electricity isn't really made.  It's more like it is pumped.  The job of a 
generator is more like that of a large pump - it pushes electrons around 
electrical circuits, and the flow of electrons is called, as before, 
electricity. 

Here are a few of the better sites that explain electricity:
 http://www.dairynet.com/kids/electric.html
 http://nyelabs.kcts.org/teach/episodeguides/eg18.html
 http://www.ccsd.k12.wy.us/Science/05/0502magnetism.html

Good luck with your project, Sid.