Question: Diva's father told her she should not eat so many cookies because they were pure sugar. Diva decided to investigate the amount of sugar in Fruity Cream cookies. She performed the sugar test on 4 grams of pure sugar and on 4 grams of Fruity Cream cookies. The results are pictured at the right. Why did Diva need to test pure sugar?
Reference answer: Diva needs to know how much gas pure sugar produced in order to decide whether the cookies are pure sugar. Diva needs to make a controlled experiment.

Student answer: Diva needed to test pure sugar so that she could make sure Fruity Cream cookies did not have as much carbon dioxide as pure sugar to see if her dad was wrong.

Student answer: Diva needed to test pure sugar because that is how much she is eating with the cookies. So it is not good to have too much or else she will have diabetes.

Student answer: Susan will know which food contains the most sugar when the tube with bag inside can stop all the way to the top.

Student answer: Tube, warm water 50 milliliters, 40 to 50 bag syringe, yeast, tube, testing food, measuring utensils.

Student answer: Diva needed to test pure sugar so he know if the cookies was pure sugar.

Student answer: Because her dad said the cookies were pure sugar.

Student answer: Because Diva's dad said they were pure sugar and so Diva investigated both to see what one had more sugar.

Student answer: So she could prove that cream fruit cookies had less than pure sugar.

Student answer: To see if it as in the cookies was exactly pure sugar.

Student answer: A volume tube, yeast, water, and a warm bath.

Student answer: To compare pure sugar and Fruity Cream cookies.

Student answer: The one with the most carbon dioxide in the volume tube has the most sugar.

Student answer: Diva needed to test pure sugar because if she just tested Fruity Cream cookies, she would have no proof of them having less milliliters than pure sugar.

Student answer: To see if pure sugar was the same as Fruity Cream cookies.

Student answer: Because she wanted to know how much sugar it has.

Student answer: She needed to test the pure sugar because she needed a controlled variable because if she did not, she would not know how much sugar is in sugar and she cannot compare the cookies and the sugar.

Student answer: So she could compare the results and see if they are the same.

Student answer: Diva needed to test pure sugar as a control to compare with the Fruity Cream cookie.

Student answer: To see what Fruity Cream cookies percentage from real sugar.

Student answer: Because her dad does not want to eat that much sugar.

Student answer: She needed to test pure sugar to find out if Fruity Cream Cookies are pure sugar.

Student answer: To see how much sugar it really has.

Student answer: To see which one has the more sugar to compare with the Fruity Cream cookies.

Student answer: She tested pure sugar because she needed something to go against with the cookies.

Student answer: To see what has more sugar than Fruity Cream cookies.

Student answer: She needed to compare if Fruity Cream cookies is pure sugar.

Student answer: She needed to test pure sugar because then there would be nothing to compare with.

Student answer: To show her dad the cookies are not equal to pure sugar.

Student answer: So she could see which one has more sugar than the other. Then she can see which one has less sugar and she can eat that one.

Student answer: Diva needed to test pure sugar because her dad said to not eat that many cookies because they are pure sugar.

Student answer: To see if Fruity Cream cookies was pure sugar.

Student answer: So she can prove to her dad that the cookies are not pure sugar. So she can have Fruity Cream Cookies.

Student answer: Diva needed to test pure sugar because she needed to see if pure sugar itself had more or less than Fruity Cream cookies.

Student answer: Because if she did not know it she would not know how much it was or if they were the same.

Student answer: So she can compare them or else she could not compare the amounts.

Student answer: So she can see the difference of the pure sugar and regular sugar.