Question

Is the result what is the result open experiment to compare the conductivity of electricity by iron copper aluminium and

Answer 1

Use similar rods of each metal. Stand them on a large piece of cobalt chloride paper on a tripod with the rods in a V shape so the points all come together over a bunsen burner. Make sure the paper will not be in the flame. Light bunsen, open air hole. As the rods heat up you can follow the progress of heat along each rod by the blue colour that appears. Longest blue line is best conductor. Compare lines. 

Incidentally, not sure why this is in the chemistry section as this is physics!