Independent & Dependent Variables

Front

What is an independent variable?

Back

The independent variable is the one variable 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 variable that is measured or observed in an experiment, and it is affected by the independent variable.

Front

What is a control in an experiment?

Back

A control is something in the experiment that must remain the same to ensure that the results are valid.

Front

In the exercise experiment, what was the independent variable?

Back

Whether the group exercises or not.

Front

In the exercise experiment, what was the dependent variable?

Back

How much weight each group lost.

Front

What is the purpose of having a control group in an experiment?

Back

The control group helps to isolate the effects of the independent variable by providing a baseline for comparison.

Front

How does changing the independent variable affect the dependent variable?

Back

Changing the independent variable can cause changes in the dependent variable, allowing researchers to observe the relationship between the two.

Front

What is an example of an independent variable in a plant growth experiment?

Back

The amount of sunlight the plants receive.

Front

What is an example of a dependent variable in a plant growth experiment?

Back

The height of the plants after a certain period.

Front

Why is it important to only change one independent variable at a time?

Back

Changing only one independent variable at a time helps to ensure that any changes in the dependent variable can be directly attributed to that specific independent variable.