The materials that were used in the course of my project were 24 apples, 16 pears, 16 avocados, 16 bananas, 12 brown paper bags, 24 ziploc bags, 18 open Tupperware containers, 1 digital camera, and 1 card table.
The fruits that were in open containers with apples, and were either in a brown bag or at room tempertature ripened the fastest. The open containers containing fruit rripened faster than those in a ziploc bag by a considerable amount. The slowest ripening condition was the combinations that were inside of the refrigerator.
My conclusion is that the fruits that were exposed to an apple, which produces ethylene gas, and that were in an open air container ripened the fastest. The conditions that stimulated the ripening process the most were the fruits in a brown paper bag (no sunlight) and the fruit at room temperature. I attribute this to the fact that the exposure of the fruits to air, and all of its elements, mixed well with the ethylene to really speed up the process. Fruits that are ripened with apples in an open container at room temperature or in a brown paper bag will ripen at the greatest speed.
The science project was on the affects of ethylene gas on the fruit ripening process, and also on all the other favorable conditions for ripening fruit.
Science Fair Project done By Kevin C. Hall