Now I think I've just confused myself
My point of the experiment was to see which washing substance would cause the most rusting. My hypothesis is that more acidic washing susbstances will cause more rusting. Now I'm going to change my experiment again. I will stilll use same sized copper pipes but I will increase the concentrations in my solutions. So I'll probably use
Vingear Solution: 50% Vingear and 50% water
Washin powder soloution: 50% washing powder and 50%water
Bi carb Solution: 50% Bicarbonate of soda and 50% water.
The time frame, amount of soloution, tub size, copper size and location will remain constant which is the dependant variable.
The independant variable will be the different substances int he solutions.
I hope this makes more sense.
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