Science Variables

Front

What is an independent variable?

Back

The independent variable is the factor that is changed or controlled in a scientific 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

What is a control variable?

Back

A control variable is a factor that is kept constant throughout an experiment to ensure that any changes in the dependent variable are due to the independent variable.

Front

In an experiment, what does it mean to have a constant?

Back

A constant is a variable that does not change during the experiment, ensuring that the test conditions remain the same.

Front

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

Back

The control group is used as a standard for comparison, helping to determine the effect of the independent variable.

Front

How does changing the independent variable affect the dependent variable?

Back

Changing the independent variable can lead to changes in the dependent variable, which is what the experiment aims to measure.

Front

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

Back

The amount of sunlight the plants receive.

Front

Give an example of a dependent variable in a study about exercise and heart rate.

Back

The heart rate of the participants after exercising.

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

Why is it important to identify control variables in an experiment?

Back

Identifying control variables is important to ensure that the experiment is fair and that the results are valid.