Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is a 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 a variable that is measured and affected in an experiment. It depends on the independent variable.

Front

In the relationship between weight of a package and cost to mail it, which is the independent variable?

Back

The weight of the package.

Front

In the relationship between the number of people at an event and the number of chairs needed, which is the dependent variable?

Back

The number of chairs needed.

Front

True or False: The dependent variable changes in response to the independent variable.

Back

True.

Front

In the relationship between the amount of gas in a car and the number of miles it can drive, which is the independent variable?

Back

The amount of gas in the car.

Front

In the relationship between the number of students in a class and the number of laptops needed, which is the independent variable?

Back

The number of students in the class.

Front

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

Back

To understand how changes in one variable affect another variable.

Front

Give an example of an independent variable in a study about plant growth.

Back

The amount of sunlight the plants receive.

Front

Give an example of a dependent variable in a study about plant growth.

Back

The height of the plants.