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, depending on the independent variable.

Front

In an experiment, what does the independent variable affect?

Back

The independent variable affects the dependent variable.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

Identifying these variables helps to understand the relationship between them and to determine how changes in one variable affect the other.

Front

Example of an independent variable: Joseph tests if the brightness of his room depends on what type of lightbulb is used. What is the independent variable?

Back

Type of lightbulb.

Front

Example of a dependent variable: Rishima tests if the sweetness of her cookies is determined by the amount of sugar she puts in them. What is the dependent variable?

Back

Sweetness of Cookies.

Front

In Kayden's experiment, he tests if he travels faster by scooter or by bike. What is the independent variable?

Back

Travel Method.

Front

In Swaransh's experiment, he explores if his test grade depends on how much time is spent on homework. What is the dependent variable?

Back

Test grade.

Front

What is an example of a dependent variable in Drisha's experiment about flowers and bugs?

Back

Bug Types Attracted.

Front

How can you identify the independent variable in an experiment?

Back

The independent variable is usually the one that is manipulated or changed by the experimenter.