Question

Loghan and Kyle wanted to see if the type of ice cream in the freezer affects how hard or soft it is. At three different times, they placed one carton of different types of ice cream in the same location in the freezer. They made sure that the freezer temperature was the same each time. They also made sure that the freezer door remained closed after each carton was placed inside it. Identify and explain one weakness in their experimental design.

Answer 1

Loghan and Kyle should have use the same type of ice cream for all three ice cream containers to get a more accurate result and data

Answer 2

Answer: The time that each type of ice cream is in the freezer must be the same in each experiment, because it can be a important factor in the experiment. Furthermore, they should repeat the experiment for various time lapses in the freezer, and check if in all cases the results of wich ice cream is the harder or softer remains the same.

Other thing they should do is check that the temperature of the 3 boxes of ice cream is the same before they put them in the freezer.