Independent & Dependent Variables and Constants

Front

What is an independent variable in an experiment?

Back

An independent variable is the factor that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Front

What is a dependent variable in an experiment?

Back

A dependent variable is the factor that is measured or observed in an experiment, and it is affected by changes in the independent variable.

Front

What are constants in an experiment?

Back

Constants are the factors that remain unchanged throughout the experiment to ensure that the results are due to the independent variable.

Front

In the context of an experiment, how do you identify the independent variable?

Back

The independent variable is identified as the variable that is intentionally changed or controlled by the experimenter.

Front

In the context of an experiment, how do you identify the dependent variable?

Back

The dependent variable is identified as the outcome that is measured in response to changes in the independent variable.

Front

Why is it important to control constants in an experiment?

Back

Controlling constants is important to ensure that any observed changes in the dependent variable are solely due to the manipulation of the independent variable.

Front

Provide an example of an independent variable in a plant growth experiment.

Back

An example of an independent variable in a plant growth experiment could be the amount of sunlight the plants receive.

Front

Provide an example of a dependent variable in a plant growth experiment.

Back

An example of a dependent variable in a plant growth experiment could be the height of the plants after a certain period.

Front

What is the relationship between independent and dependent variables?

Back

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

Front

How can you determine if a variable is independent or dependent?

Back

You can determine if a variable is independent or dependent by asking whether it is being changed (independent) or measured (dependent) in the experiment.