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 equation y = 2x, which variable is independent?

Back

x is the independent variable.

Front

In the equation y = x + 5, which variable is dependent?

Back

y is the dependent variable.

Front

If the number of students in a class increases, what happens to the number of treats needed?

Back

The number of treats needed (dependent variable) increases as the number of students (independent variable) increases.

Front

Identify the independent variable: The time spent studying affects test scores.

Back

The time spent studying is the independent variable.

Front

Identify the dependent variable: The amount of rainfall affects the growth of plants.

Back

The growth of plants is the dependent variable.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.

Front

In a graph, which axis typically represents the independent variable?

Back

The x-axis typically represents the independent variable.

Front

In a graph, which axis typically represents the dependent variable?

Back

The y-axis typically represents the dependent variable.