Identify Independent and Dependent Variables

Front

What is an independent variable?

Back

The independent variable is the one that is deliberately changed or manipulated by the scientist in an experiment.

Front

What is a dependent variable?

Back

The dependent variable is the one that is measured or observed in an experiment to see how it is affected by changes in the independent variable.

Front

In an experiment, what does the control group do?

Back

The control group serves as a standard for comparison and is not exposed to the independent variable.

Front

How does changing the scent of dog food relate to dependent variables?

Back

The amount the dog eats is the dependent variable, as it is affected by the change in scent.

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

In Dilcia's experiment, what is the independent variable?

Back

The independent variable is drinking milk, as it is what Dilcia is changing to see its effect on Monica's growth.

Front

What is the dependent variable in Cindy's plant experiment?

Back

The dependent variable is the growth of the plant, as it is what is being measured.

Front

Why is it important to control variables in an experiment?

Back

Controlling variables ensures that the experiment is fair and that the results are due to the independent variable alone.

Front

What is a hypothesis in the context of an experiment?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

Can an experiment have more than one independent variable?

Back

No, an experiment should ideally have only one independent variable to clearly determine its effect on the dependent variable.