Independent and Dependent Variables

Front

What is an independent variable?

Back

An 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

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

Front

In the experiment, 'How does the amount of sunlight affect plant growth?', what is the independent variable?

Back

The amount of sunlight.

Front

In the experiment, 'How does the amount of water affect the height of a plant?', what is the dependent variable?

Back

The height of the plant.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

To understand the relationship between the variables and how changes in one affect the other.

Front

If you are testing how different fertilizers affect plant growth, what is the independent variable?

Back

The type of fertilizer used.

Front

If you are measuring how far a car travels based on the amount of fuel used, what is the dependent variable?

Back

The distance traveled by the car.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the results are valid.

Front

Why is it important to have a control group in an experiment?

Back

A control group provides a baseline for comparison, helping to isolate the effects of the independent variable.

Front

In the question 'Does the temperature of water affect how quickly sugar dissolves?', identify the independent variable.

Back

The temperature of the water.