Independent and Dependent Variables

Front

What is the independent variable in an experiment?

Back

The 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 the dependent variable in an experiment?

Back

The dependent variable is the variable that is measured and affected in an experiment.

Front

On which axis is the independent variable plotted on a graph?

Back

The independent variable is plotted on the x-axis.

Front

On which axis is the dependent variable plotted on a graph?

Back

The dependent variable is plotted on the y-axis.

Front

In the equation y = mx + b, what does y represent?

Back

y represents the dependent variable.

Front

In the equation y = mx + b, what does x represent?

Back

x represents the independent variable.

Front

If the number of hours studied increases, what happens to the test score?

Back

The test score (dependent variable) is likely to increase as the number of hours studied (independent variable) increases.

Front

What is an example of an independent variable in a study about plant growth?

Back

The amount of sunlight the plants receive.

Front

What is an example of a dependent variable in a study about plant growth?

Back

The height of the plants.

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.