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 the relationship between water usage and water bill, which is the independent variable?

Back

How much water you use.

Front

In the relationship between gas in a car and miles driven, which is the independent variable?

Back

The amount of gas in the car.

Front

In the relationship between fabric and blankets made, which is the dependent variable?

Back

The number of blankets Rebecca can make.

Front

In the relationship between lunch line length and wait time, which is the dependent variable?

Back

How long you wait in line.

Front

In the relationship between students in a class and 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.