Independent vs. Dependent Variable Practice

Front

What is an independent variable?

Back

The independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

Example of an independent variable in an experiment about plant growth.

Back

The amount of sunlight the plants receive.

Front

Example of a dependent variable in an experiment about plant growth.

Back

The height of the plants after a certain period.

Front

In an experiment, if you change the temperature of water, what is the independent variable?

Back

The temperature of the water.

Front

In an experiment, if you measure how fast a chemical reaction occurs, what is the dependent variable?

Back

The speed of the chemical reaction.

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 study measuring how different amounts of fertilizer affect plant growth, what is the independent variable?

Back

The different amounts of fertilizer.

Front

In a study measuring how different types of music affect concentration, what is the dependent variable?

Back

The level of concentration of the participants.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant to ensure that the results are due to the independent variable.