keniya britton dyo #1

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  • 8/8/2019 Keniya Britton DYO #1

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    Keniya Britton

    DYO Investigation #1

    Background:

    (a.) I know that saturated fats are unhealthy and can

    come from animals; I also know that saturated fats are

    in fact healthy and come from plants. Unsaturated fats

    are good fats because they keep your body healthy and

    keep you from getting sick. Saturated fats are bad foryou because they lower your cholesterol. The human

    body stores extra fat in your fat cells. Fat plays a big

    role in maintaining healthy skin and hair.

    (b.) How much fat is in a food.

    Purpose:

    (a.) I am doing this experiment to find out how much fat

    is in one of my favorite Italian snacks, a Chocolate

    Biscotti. One reason being is because I eat a lot of

    them and I would like to find out how much fat I am

    actually consuming.Materials:

    (a.) Chocolate Biscotti Beaker Petri Dish

    Graduated Cylinder Stirrer Acetone

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    Procedure:

    (a.) Find the mass of your food.

    Weigh a beaker and record weight, and then add 10mL

    of acetone to beaker.

    Stir until well mixed, and then allow it to settle for 1

    minute.

    Carefully pour acetone into Petri dish.

    N E X T D A Y:

    Weigh food and beaker.Clean beaker and calculate weight difference from

    cylinder and food, as well as just the food.

    Scientific prediction and Reasoning:What can you predict about this experiment?

    I predict that the Chocolate Biscotti will have a lard percentage of fat because when we

    used chocolate as a tester in the class experiment it had a lard percentage of fat. Since there is morethan chocolate in the Biscotti I predict the percentage will go up way more.

    Data:

    Food Type Weight of beaker w/ food

    (1st time)

    Weight of beaker w/ food

    (last time)

    Amount of fat execrated

    from food

    Total (g) ~%fat in food

    Chocolate Biscotti

    Chocolate Biscotti 173.7g 171g 11.9g ~ 22.6%

    Conclusion:

    Well our procedure was very easy. We wanted to find the percentage of fat is in Chocolate Biscotti. We

    measured our food and then poured the acetone on it to get all of the fat. We found out that the

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    percentage of fat was 22.7%. I expected it to be more than that because when we found the percentage

    of just chocolate alone, as a class it was 38%. I found out that surprising that a Chocolate Biscotti has

    less fat than chocolate alone. Maybe it depends on what kind of chocolate there was. I also found it

    surprising that chocolate Biscotti has more fat than a butter bagel. My findings make me want to cut down

    on how much I eat biscotti. Looks like I will have to find a new favorite snack. I realized that I need to think

    about if each outcome is actually correct. The only way to know for sure, would be to do it again and see

    if I get the same results or close to the same results.