Subject: Can you explain how to make a battery operated answer board?

I am insterested in making a battery operated quiz (or answer) board as part of 
an experiment on electric current.  The boards that I have seen use a 9 volt 
battery wired to a light at the top of the board.  Questions are displayed on 
the left side of the board; Answers on the right.  Beside each question/answer 
is a brad.  A wire runs from brad to brad, matching the question with its 
answer.  I don't have the "plans" for this board and haven't been able to 
locate a design from internet inquiries or in science book I've gotten at our 
library.  I don't understand how you connect the battery and light into the 
design?  Can you help or steer me in the right direction?  Thanks  Charles

Re: Can you explain how to make a battery operated answer board?