Independent/Dependent Variables

Front

What is an independent variable?

Back

The independent variable is the one thing that is changed on purpose in an experiment.

Front

What is a dependent variable?

Back

The dependent variable is the outcome or response that is measured in an experiment.

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 do we use graphs in science?

Back

Graphs are used to record and display data, show trends in data, and predict outcomes.

Front

In Jamal's basketball experiment, what is the independent variable?

Back

How close Jamal gets to the hoop.

Front

In Jamal's basketball experiment, what is the dependent variable?

Back

How many points he scores.

Front

What is the purpose of a control in an experiment?

Back

A control is used to provide a standard for comparison and to ensure that the results are due to the independent variable.

Front

What does it mean to manipulate a variable?

Back

To manipulate a variable means to change it intentionally to observe the effect on the dependent variable.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is changed to see how it affects the dependent variable.

Front

Give an example of a scientific question involving independent and dependent variables.

Back

Does the amount of sunlight affect the growth of a plant? (Independent: amount of sunlight, Dependent: growth of the plant)