Scientific Method Review

Front

What is the purpose of the scientific method?

Back

To solve problems and conduct experiments.

Front

Why is it important to have constants (controlled variables) in an experiment?

Back

So scientists know their results came only from the independent variable and nothing else.

Front

What step does every scientific experiment begin with?

Back

Question/problem.

Front

Why can't the speed of the runner be a constant in the experiment 'Do new shoes make you run faster?'?

Back

Because the speed of the runner is the dependent variable so it cannot be a constant.

Front

What is the dependent variable in the experiment testing the effects of type of exercise on heart rate?

Back

Heart rate.

Front

Define 'independent variable' in the context of an experiment.

Back

The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a hypothesis?

Back

A testable prediction about the relationship between two or more variables.

Front

Explain the difference between qualitative and quantitative data.

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.

Front

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

Back

The control group serves as a baseline to compare the effects of the independent variable.

Front

What is the significance of replicating experiments?

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Replication helps to verify results and ensure reliability and accuracy.