How To make a Telegraph?

Question

umm My daughter is has to make a telegraph for U.S. History Hl and the teacher said to look for how to make one does anyone have a way to make a telegraph it could be one that thats a light door bell anything
Just the telegraph cant be to be
( the telegraph is like the morse code)
I Hope someone can help me thank you very much
I need by today or tomarrow or saturday if possible
Thanks you agian>>>

Answer 1

Here are some sites that look pretty useful:

http://www.w1tp.com/perbuild.htm

http://school.discovery.com/curriculumcenter/electricity/activity2.html

http://www.yesmag.bc.ca/projects/telegraph.html

There are plenty more if you search "build a telegraph project"