Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in a scientific 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 and affected in an experiment, responding to changes in the independent variable.

Front

In an experiment, what does the x-axis typically represent?

Back

The x-axis typically represents the independent variable.

Front

In an experiment, what does the y-axis typically represent?

Back

The y-axis typically represents the dependent variable.

Front

If you are testing how different amounts of sunlight affect plant growth, what is the independent variable?

Back

The independent variable is the amount of sunlight.

Front

If you are testing how different amounts of fertilizer affect crop yield, what is the dependent variable?

Back

The dependent variable is the crop yield.

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 the statement 'The more you study, the better your grades will be,' what is the independent variable?

Back

The independent variable is the amount of studying.

Front

In the statement 'The higher the temperature, the faster the reaction occurs,' what is the dependent variable?

Back

The dependent variable is the speed of the reaction.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant to ensure that the results of an experiment are valid.