The temperature change depends on the reactivity of the metal. The student's results are used to place copper, iron, magnesium and zinc in order of
their reactivity
Describe a method to find the position of an unknown metal in this reactivity series.
Your method should give valid results.

no, i was listening to water by schoolboy q while and i saw this question

explenation:

water isn't wet. wetness is a description of our experience of water; what happens to us when we come into contact with water in such a way that it impinges on our state of being. we, or our possessions, 'get wet'. a less impinging sense experience of water is that it is cold or warm, while visual experience tells us that it is green or blue or muddy or fast-flowing. we learn by experience that a sensation of wetness is associated with water: 'there must be a leak/i must have sat in something.'

i think it is true since you can test the answer and can use observations to complete it.