How Does Baking Soda Affect The Density Of A Cookie

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How does the amount of baking soda affect the density of a cookie? In this experiment, we tested to see if the amount of baking soda will affect the density of a banana chocolate chip cookie by adding different amounts of baking soda. Have you ever wondered how the amount of baking soda affects the density of a cookie? In this experiment, we tested to see if the amount of baking soda will impact the density of a banana chocolate chip cookie. The independent variable is the baking soda, and the dependent variable is the density of the cookie. Hypothesis The density of the cookie will go down when more baking soda is added because baking soda is a leavening agent so that will cause the cookie to have more air and therefore be less dense. This …show more content…

Set the oven to 350 degrees for baking. Put 12 of a small ripe banana in the large bowl and mash it. After the banana is mashed, add 14 cup vegetable oil and 12 cup brown sugar. Mix all the ingredients together. Add 12 of an egg yolk and 12 teaspoon of vanilla extract. Mix well. Add 23 cup of flour, depending on which trial you are on (18 14 12 1 tsp) baking soda, 1 teaspoon cinnamon, and 14 teaspoon salt. Stir until no streaks remain. Fold in 13 cup chocolate chips. Set aside to let the flour hydrate the dough while the oven preheats. When the oven is ready, line a cookie sheet with parchment paper. Scoop the cookie dough into small balls and lay them on the parchment paper. When the cookie sheet is full and there is no room left to put any more cookies, then you put the cookie in the oven. Let the cookies cook in the oven for 12 minutes. When the 12 minutes are up, take cookies out and let them rest until they are room temperature. Once the cookies are room temperature, take one cookie and weigh it in grams to find the mass of the cookie. Then to find the volume of the cookie, thinly wrap the cookie in plastic wrap. Make sure there is no excess air inside the plastic wrap, take a cup and fill it up halfway with water. Mark the outside of the glass where the water is. Submerge the cookie in the water and mark the top of the water in the glass. Take the cookie out of the glass, take a measuring …show more content…

It was expected for the cookie’s density to decrease, but the cookies with the most baking soda were more dense than the cookies with only 14 teaspoon of baking soda. This experiment had lots of challenges, having to pay lots of attention to details when baking the cookies, making sure that all of the measurements were correct and exact. The prediction for the cookie switch from the most baking soda to the least dense was only partly true. The cookies with the least amount of baking soda were the most dense, but the cookies that had 1 teaspoon of baking soda were also incredibly dense. The cookies with the most baking soda were more dense than the cookies that had 14 teaspoon of baking soda, which was very surprising. While the cookie’s density was decreasing as planned, in the end an unexpected twist happened, causing the hypothesis to be

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