Scientific Investigation

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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, which 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 manipulated or changed in an experiment to observe its effect on the dependent variable.

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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 an experimental question?

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An experimental question is a question that can be answered through experimentation and observation.

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What does it mean to control variables in an experiment?

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Controlling variables means keeping all factors constant except for the independent variable to ensure that any changes in the dependent variable are due to the independent variable.

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

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A control group is used as a standard for comparison; it does not receive the experimental treatment and helps to isolate 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.

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What is data collection in scientific investigation?

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Data collection is the process of gathering and measuring information on variables of interest in a systematic way.

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What is qualitative data?

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Qualitative data is descriptive information that cannot be measured numerically, such as colors, textures, or feelings.

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What is quantitative data?

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Quantitative data is numerical information that can be measured and expressed mathematically, such as height, weight, or temperature.