Controls and variables

Front

What is an independent variable?

Back

The independent variable is the ONE thing you change in an experiment.

Front

What is the role of the independent variable in an experiment?

Back

The independent variable is the variable that is deliberately changed by the scientist to test its effect.

Front

In a controlled experiment, what is the variable that is changed to test the hypothesis called?

Back

Independent Variable

Front

What is the dependent variable?

Back

The dependent variable (DV) is the variable that you measure in an experiment.

Front

What starts the scientific process?

Back

Everything starts with an observation or a question.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the test is fair.

Front

What is the difference between independent and dependent variables?

Back

The independent variable is changed by the experimenter, while the dependent variable is measured as a response.

Front

What is a control group?

Back

A control group is a group in an experiment that does not receive the treatment and is used for comparison.

Front

Why is it important to have a control group in an experiment?

Back

A control group helps to ensure that the results of the experiment are due to the independent variable and not other factors.

Front

What is the purpose of repeating trials in an experiment?

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Repeating trials helps to ensure the reliability and accuracy of the results.