Subject: Shouldn't lightning be the fifth element?

The four fundamental elements that science acknowledges are earth, fire, water 
and air. But why isnt lightning an element? If you were to argue that lightning 
is not a constant state, like water, air or the earth, but one that must be 
created, then you rule out fire as well. So how is it lightning does not count?

Re: Shouldn't lightning be the fifth element?