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 an independent variable?

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The independent variable is the one factor that is changed or manipulated in an experiment to test its effects on the dependent variable.

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What is a dependent variable?

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The dependent variable is the factor that is measured or observed in an experiment. It is affected by changes in the independent variable.

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What are controlled variables?

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

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What is a hypothesis?

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A hypothesis is an educated guess or prediction about the relationship between the independent and dependent variables in an experiment.

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What is the first step of the scientific method?

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The first step of the scientific method is to identify a question or problem that needs to be investigated.

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What is the purpose of conducting repeated trials in an experiment?

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The purpose of conducting repeated trials is to ensure the reliability and accuracy of the results by minimizing the effects of random errors.

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What is the conclusion in a scientific experiment?

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The conclusion is a summary of the results of the experiment, stating whether the hypothesis was supported or not based on the data collected.

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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).

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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 provides a baseline for comparison, helping to isolate the effects of the independent variable.