Understanding Living Things and Variables (Unit 1 Review)

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What is a quantitative observation?

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A quantitative observation is a measurement that includes a number, such as 'The mass of the sample is 5 grams.'

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What is the next step in the scientific method after forming a hypothesis?

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Conducting an experiment.

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What is the independent variable in an experiment?

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

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What best describes a hypothesis?

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

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What is the main difference between an observation and an inference?

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An observation is a fact based on what is seen or measured, while an inference is a conclusion drawn from observations.

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What is a dependent variable?

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The dependent variable is the factor that is measured in an experiment, which is affected by changes in the independent variable.

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

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The control group serves as a standard for comparison, allowing scientists to determine the effect of the independent variable.

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Define 'variable' in the context of scientific experiments.

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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 the role of data analysis in the scientific method?

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Data analysis involves interpreting the data collected during an experiment to draw conclusions and support or refute the hypothesis.

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What is an inference?

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An inference is a logical interpretation or conclusion drawn from observations.