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 t = f(s), identify the independent variable.

Back

s (the number of students) is the independent variable.

Front

In the equation t = f(s), identify the dependent variable.

Back

t (the number of treats) is the dependent variable.

Front

If the number of students increases, what happens to the number of treats?

Back

The number of treats (dependent variable) is likely to increase as the number of students (independent variable) increases.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe how it affects the dependent variable.

Front

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

Back

The amount of sunlight each plant receives could be the independent variable.

Front

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

Back

The height of the plants could be the dependent variable.

Front

What does it mean to control variables in an experiment?

Back

Controlling variables means keeping other factors constant to ensure that the results are due to the independent variable.

Front

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

Back

The x-axis typically represents the independent variable.