If you're testing a hypothesis, you want to control one aspect of the experiment (independent variable) and check how it affects something else (dependent variable). You generally want to identify the variables in your presentation or poster.
If you are asking whether all paper towels absorb the same amount of liquid, which of the following would be true?
A. Changing brands of paper towels would be the independent variable. How many times you did the experiment would be the dependent variable.
B. The type of liquid you chose would be the independent variable. How much liquid is absorbed is the dependent variable.
C. How much liquid is absorbed is the independent variable. Changing brands of paper towels would be the dependent variable.
D. Changing brands of paper towels would be the independent variable. How much liquid is absorbed is the dependent variable.
