Practice Independent, dependent, constant variables

Front

What is the Independent Variable (IV)?

Back

The Independent Variable (IV) 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 (DV)?

Back

The Dependent Variable (DV) is the variable that is measured and affected in an experiment. It responds to changes in the Independent Variable.

Front

What is a Constant Variable?

Back

A Constant Variable is a factor that remains the same throughout an experiment to ensure that the test results are valid.

Front

Why is it important to test only one variable at a time?

Back

Testing one variable at a time keeps the experiment fair and allows you to see what caused the change in the results.

Front

How many variables can be tested in a controlled experiment?

Back

Only one variable can be tested in a controlled experiment.

Front

Example of an Independent Variable:

Back

In the question 'Does the temperature of a tennis ball affect the height of its bounce?', the Independent Variable is the temperature of the tennis ball.

Front

Example of a Dependent Variable:

Back

In the question 'Does a metal baseball bat vibrate more than a wooden baseball bat?', the Dependent Variable is the amount of vibration.

Front

What is the role of a Constant Variable in an experiment?

Back

The role of a Constant Variable is to ensure that the experiment is fair by keeping certain factors unchanged.

Front

What happens if multiple variables are tested at once?

Back

If multiple variables are tested at once, it becomes difficult to determine which variable caused the change in the results.

Front

Define 'Controlled Experiment'.

Back

A Controlled Experiment is a scientific test where one variable is changed while all others are kept constant.