I'm doing an experiment on evaporation of different liquids. Do my aim and hypothesis make sense?

Seems interesting, though if I may make one observation about your experiment: Aside from oil, the other three components you are testing are water-based. The vast majority of orange juice and wine is water (ok, for wine it's probably about 85%, but for orange juice it's probably in the 90's). At the very least, perhaps the other thing you choose to look at could be not, water based? You may be able to get something like acetone, or paint thinner, though be careful not to inhale the fumes from those. Also you may be able to draw a relationship between how much water vs. other things are in a solution, and how long it takes them to evaporate. Another interesting thing to look at might be how much solid is left behind after something completely evaporates (I'm sure wine and orange juice will leave behind some solids after all the water has been evaporated, perhaps you will see that the amount of solid left behind will relate to how long it took it to evaporate?). Just some ideas, but overall, your experiment should be interesting.