Independent/Dependent Variables

Front

What is an independent variable?

Back

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

Front

What is a dependent variable?

Back

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

Front

In the relationship between the number of hours studied and test scores, identify the independent variable.

Back

The number of hours studied.

Front

In the relationship between the temperature of water and the time it takes to freeze, identify the dependent variable.

Back

The time it takes to freeze.

Front

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

Back

Identifying these variables helps to understand the cause-and-effect relationship in the experiment.

Front

If you increase the amount of sunlight a plant receives, what is the independent variable?

Back

The amount of sunlight.

Front

If you are studying the effect of fertilizer on plant growth, what is the dependent variable?

Back

The growth of the plant.

Front

In a study measuring the effect of different diets on weight loss, what is the independent variable?

Back

The different diets.

Front

What does it mean if a variable is controlled in an experiment?

Back

A controlled variable is kept constant to ensure that the results are due to the independent variable.

Front

In an experiment, if the amount of water given to a plant is changed, what is the dependent variable?

Back

The growth of the plant.