Annie wants to find out if having a substance dissolved in water changes the temperature at which the liquid boils. She prepares
two samples of water with equal volumes. She dissolves 3.0 grams of salt in the first sample, and uses the second sample of pure water for a control group. She then heats each sample until it boils and records the temperature while it is boiling.
The dependent variable is: the temperature at which liquid boils.
Explanation:
The Dependent variable in a study or research is the variable that is measured after the modification or change in the particular research independent variable.
In this case, the independent variable is the treatment that liquid or water get which is the addition of 3 gm salt, and in the response to this treatment change in the boiling point of the liquid will be the dependent variable.
Thus, the correct answer is - the temperature at which liquid boils.
