A student studies three different types of bread to see if the type will affect how much time it will take to grow mold. He begins measuring the time it takes the bread to grow mold after 1 week. Which of the following is a DEPENDENT variable
Time it takes to grow mold
Type of bread
Type of mold
How long it sits out
Answer: Time it takes to grow mold
Explanation:
Independent variable is the one which can be altered manually by the experimenter and the effect of the manipulation can be observed on the dependent variable. The dependent variable is the result of the experiment. The three different breads used in the case of study is the independent variable. The time required to grow the mold in this experiment is the dependent variable which is the outcome of this experiment. Different breads can offer different kind of substratum, nutrition, and other conditions for the growth of the mold.