Unit 0 Nature of Science Flashcard

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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 changes in response to the independent variable.

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What is an independent variable?

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

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What is a control group?

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A control group is a group in an experiment that does not receive the treatment or independent variable, used for comparison.

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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 a theory in science?

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A theory is a well-substantiated explanation of an aspect of the natural world that is based on a body of evidence.

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What is a scientific law?

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A scientific law is a statement that describes an observable phenomenon, often expressed mathematically.

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Why is it important for scientists to replicate experiments?

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Replicating experiments helps confirm results and reduces bias, ensuring reliability in scientific findings.

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What is the purpose of a variable in an experiment?

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Variables are used to test hypotheses and determine relationships between different factors.

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What is the difference between qualitative and quantitative data?

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

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What is an inference?

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An inference is a conclusion drawn from evidence and reasoning rather than from explicit statements.