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Posted by on Friday, November 9, 2007 at 4:04pm.

I'm planning on doing a science fair project, but it has to involve an experimen. I wanted to do it on how adding mayonnaise, ketchup, and mustard to a small hamburger at McDonalds can so much fat to it that it can make it as bad as a big hamburger without the mayo, ketchup, and mustard. I also want to do this with small fries. Now, I was thinking that I would just look up the nutritional values and make a chart of that, but it's not in experiment form. Is there any experiment I could do to measure the fat in these? Or any other way I can make this into an experiment? Please help!

  • Science Fair - , Friday, November 9, 2007 at 4:16pm

    For mayo, catsup and mustard, you can figure out the number of calories and fat grams from information on the label. It will be given in terms of the "serving size", probably in tablespoons. Data on the calories and fat grams in a Big Mac and small fries can be obtained from any of their outlets, or probably their website.

    It is refreshing to see a Science Fair question in which the person asking aleady has a good idea about what he or she wants to do!

  • Science Fair - , Friday, November 9, 2007 at 4:29pm

    Yes, I figured that out, but it has to be some sort of experiment. And adding up the calories and fat grams isn't really an experiment. So, is there any way I can form this into an experiment? I was hoping somebody would have an idea on that. And Thanks! Yes I do know what I want to do, but how is one of the questions.

  • Science Fair - , Friday, November 9, 2007 at 6:19pm

    Unless you want to do an experiment that measures calories, or grams of fat, and perhaps separates then into so-called saturated- unsaturated and trans-fats, then I have no suggestions. You could learn about how such measurements are made, and make one or two of them. It won't be easy. Packaged and fast-food sellers are required to provide that information already.

    Some of these reports on food fat measurement may be helpful:

  • Science Fair - , Friday, November 9, 2007 at 6:30pm

    Thanks, I might have talk to my teacher to get some more ideas.

  • Science Fair - , Friday, November 9, 2007 at 7:09pm

    If I were to weigh the hamburgers, compare that to the amount of fat shown on the nutrition guide, then find a percentage of it, would that work? Then, I would add the catsup, mayo, and mustard, weigh those, find that percentage and add them to the hamburger. Then I could weigh the hamburgers WITH the condiments, and figure that percentage of fat, making it into an experiment?

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