Nature of Science

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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 'It is 5 cm long.'

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What is a qualitative observation?

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A qualitative observation describes characteristics or qualities without using numbers, such as 'It is smooth' or 'It looks red.'

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What is the dependent variable in an experiment?

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The dependent variable is the factor that is measured or observed in an experiment, such as 'reaction time' in the question about video games.

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What is an example of a quantitative observation?

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An example of a quantitative observation is 'There were 5 children on the playground.'

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What is an example of a qualitative observation?

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An example of a qualitative observation is 'The sky was blue and filled with clouds today.'

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What does it mean to conduct a scientific experiment?

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Conducting a scientific experiment involves testing a hypothesis by manipulating variables and observing the outcomes.

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What is a hypothesis?

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

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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 an experiment to test its effects on the dependent 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 see the effects of the independent variable.

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What is the scientific method?

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The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.