Scientific Method and Variables

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What is the Scientific Method?

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The Scientific Method is a systematic process used for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. It typically involves making observations, forming a hypothesis, conducting experiments, and drawing conclusions.

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What is a Dependent Variable?

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The Dependent Variable is the variable that is measured in an experiment. It is affected by changes in the Independent Variable.

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What is an Independent Variable?

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

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What is a Controlled Variable?

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Controlled Variables are the factors that are kept constant throughout an experiment to ensure that the results are valid.

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What is a Hypothesis?

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A hypothesis is an educated guess or prediction about the relationship between two variables that can be tested through experimentation.

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How many variables can be tested in a controlled experiment?

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Only one variable can be tested in a controlled experiment to ensure that the results are due to that variable alone.

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What is the purpose of a Repeated Trial?

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Repeated Trials are conducted to ensure the reliability and accuracy of the results by minimizing the effects of random errors.

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What does it mean to change the Independent Variable?

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Changing the Independent Variable means altering the one factor in an experiment that is being tested to observe how it affects the Dependent Variable.

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

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A control group is important because it serves as a baseline to compare the effects of the Independent Variable, helping to validate the results.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities (e.g., color, texture), while quantitative data involves numerical measurements (e.g., height, weight).