Independent and Dependent Variables

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

In an experiment, what does the term 'controlled variable' refer to?

Back

Controlled variables are factors that are kept constant throughout an experiment to ensure that any changes in the dependent variable are due to the independent variable.

Front

How does changing the type of shoe affect a runner's speed?

Back

The type of shoe is the independent variable, while the speed of the runner is the dependent variable.

Front

If you are testing which type of paper airplane goes furthest, what is the independent variable?

Back

The independent variable is the type of paper airplane.

Front

In the experiment about dog food scent, what is the dependent variable?

Back

The dependent variable is how much the dog eats.

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 controlled variables in an experiment?

Back

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

Front

What is an example of a dependent variable in a study measuring the effect of study time on test scores?

Back

The dependent variable is the test scores.

Front

If a scientist changes the temperature of water to see how it affects the solubility of salt, what is the independent variable?

Back

The independent variable is the temperature of the water.