Ontario Grade 9 Science Class Practice Exam

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Master Grade 9 Science with our comprehensive practice exam. Test your knowledge, identify weak areas, and boost your confidence for academic success.

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What changes in response to the change in the independent variable?

Control variable
Dependent variable
Independent variable
Constant variable

The correct answer is: Dependent variable

The other options are incorrect because they either do not directly answer the question or are not related to the concept of independent and dependent variables. A control variable remains constant throughout the experiment and is not affected by changes in the independent variable. C is the independent variable itself and is not a change that occurs in response to the independent variable. D is a term used to describe a variable that does not change throughout the experiment. Therefore, B is the best answer as it directly states that the dependent variable is the one that changes in response to changes in the independent variable.