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

In an experiment, what does the independent variable represent?

Back

The independent variable represents the cause or input that is manipulated to observe its effect.

Front

In an experiment, what does the dependent variable represent?

Back

The dependent variable represents the effect or outcome that is measured in response to changes in the independent variable.

Front

Example of an independent variable: If a class studies or not, what is the dependent variable?

Back

The dependent variable is the test scores of the class.

Front

Example of an independent variable: The number of hours of sleep, what is the dependent variable?

Back

The dependent variable is the test grades.

Front

In the experiment about soccer balls, what is the independent variable?

Back

The independent variable is the size of the soccer ball.

Front

In the question about ice cream melting, what is the independent variable?

Back

The independent variable is the flavor of ice cream.

Front

In the question about studying and watching TV, what is the dependent variable?

Back

The dependent variable is the student’s test grades.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

Identifying these variables helps to understand the relationship between cause and effect in scientific investigations.