Scientific Method and Variables

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What is the first step in the scientific method?

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

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What is a variable in a scientific experiment?

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A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

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What is a controlled experiment?

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A controlled experiment is one in which only one variable is changed at a time to isolate the effects of that variable.

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What is an independent variable?

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The independent variable is the factor that is changed or manipulated in an experiment.

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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.

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Why is it important to test only one variable at a time?

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Testing one variable at a time helps to determine which variable is responsible for any observed changes.

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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 a fair test.

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What is a hypothesis?

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

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What is the purpose of a conclusion in a scientific experiment?

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The conclusion summarizes the results of the experiment and explains whether the hypothesis was supported or not.

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What is the role of repeated trials in an experiment?

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Repeated trials help to ensure that the results are reliable and not due to random chance.