What I did was I made a ramp out of wood and also I made a spacer that would hold the wood at exactly 16 degrees. I would then ensure that the ramp was perfectly even against table so that there would be no bounce effect. When all that was checked I would then start the testing. First I placed the ball bearing on a marked spot on the wood (180mm from the end of the ramp) and pulled away the pencil that was holding it. After it stopped rolling on the material I measured how far it went and recorded it in my log book. I repeated this 100 times for each material.
In order from most ascorbic acid to least ascorbic acid according to my tests: Tangerine, Orange, Tomato, Grapefruit, Lemon, Lime. In order from most ascorbic acid to least ascorbic acid according to their tests: Orange, Lemon, Grapefruit, Tangerine, Lime, Tomato
My hypothesis was incorrect. The lab is not consistent in showing which fruit has the most ascorbic acid. When the lab stayed consistent for three tests, I noted that the results were not the same as the results given. This particular test cannot be done by a simple "at-home" lab test.
This project is to test the viability of a simple "at-home" test for testing realative amounts of ascorbic acid in certain fruits.
Science Fair Project done By Alison S. Mathis