Good info. Thanks for it.

I did an experiment for my 6th grade science project using electrolysis. I coated a quarter with copper from a penny and also collected the hydrogen that bubbles up from one of the electrodes into a test tube and lit it on fire. It made a pop that made the teacher jump. I got an A+ <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />