Change of Idea

After consultation with Ms Tan, my original idea did not seem like such a good one after all!

Firstly, there were too many factors affecting my results. I had intended on testing out the experiment on 3 cars, but Ms Tan had rightly pointed out that the 3 cars were of different make, model etc. She suggested I go to a car dealer and ask if I could test the experiment out on their cars (since they were all already parked outside and were all of the same brand), but this was not very good as the salesperson would not agree to the experiment.

Secondly, if it was a rainy day they whole experiment was going to be a failure. Since I can borrow the necessary experiment from the the science laboratory for only 3 days, if all 3 days were rainy ones I could not even conduct my experiment!

Thus, I decided to change my idea. My favourite fruit is peach, and every time I ate peaches I noticed that they would turn brown after a while. This made the peach unappetizing. I was wondering whether there were any easily available household preservatives that could preserve the colour of the peaches for the longest time?