Experiment 1
Equipment : pH paper, different drinks (ranging from soft drinks to fruit drinks),
Dependent Variable : Color change then compare it on the pH paper.
Independent Variable : Type of drink.
Experiment 2
Equipment 2 : Cups, different drinks (ranging from soft drinks to fruit drinks), plastic, paper, metal
Controlled Variable : Cup, amount of liquid and material.
Dependent Variable : Effect the liquid has on the material.
Independent Variable : Type of drink, type of material
Im unsure if I should do experiment 2 though because it does look more interesting but the way of collecting the results which is basically just looking at them is not that reliable.
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