Dependent and Independent 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 the independent variable.

Front

In the experiment, if you change the amount of sunlight a plant receives, what is the independent variable?

Back

The amount of sunlight.

Front

In the experiment, if you measure how tall a plant grows based on different amounts of water, what is the dependent variable?

Back

The height of the plant.

Front

If you are testing how different temperatures affect the solubility of sugar in water, what is the independent variable?

Back

The temperature of the water.

Front

If you are studying how the number of hours studied affects test scores, what is the dependent variable?

Back

The test scores.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.

Front

In a study about how exercise affects heart rate, what is the independent variable?

Back

The amount of exercise.

Front

In a science experiment, if you change the type of fertilizer used on plants, what is the independent variable?

Back

The type of fertilizer.

Front

If you are looking at how different diets affect weight loss, what is the dependent variable?

Back

The amount of weight lost.