Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What are constants in an experiment?

Back

Constants are the factors that are kept the same throughout an experiment to ensure that the results are valid.

Front

In a line graph, which variable is represented on the x-axis?

Back

The independent variable is always labeled on the x-axis.

Front

In an experiment comparing plant growth with different sunlight exposure, what is the independent variable?

Back

The amount of sunlight each plant receives.

Front

In an experiment measuring the effect of study time on test scores, what is the dependent variable?

Back

The test scores are the dependent variable.

Front

What is the purpose of controls in an experiment?

Back

Controls are used to ensure that the experiment is fair and that the results are due to the independent variable.

Front

How do you identify the independent variable in a study?

Back

The independent variable is what the researcher changes or manipulates in the experiment.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable affects the dependent variable; changes in the independent variable lead to changes in the dependent variable.

Front

What is an example of a dependent variable in a study measuring the effect of temperature on ice melting?

Back

The amount of ice melted is the dependent variable.