Scientific Investigation, variables, constants, control

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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. It is affected by changes in 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 controlled variable?

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Controlled variables are factors that are kept constant throughout an experiment to ensure that the results 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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How does one formulate a hypothesis?

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A hypothesis is a testable statement that predicts the relationship between the independent and dependent variables.

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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 the role of constants in an experiment?

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Constants are conditions that are kept the same throughout an experiment to ensure that the test is fair and valid.

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What is an example of a dependent variable in a plant growth experiment?

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Plant growth is a dependent variable because it is measured to see how it is affected by changes in the independent variable, such as the type of liquid given.

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What is an example of an independent variable in a temperature experiment?

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The temperature at which an alligator's egg is incubated is an independent variable because it is manipulated to observe its effect on the gender of the alligator.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities (e.g., color, texture), while quantitative data involves numerical measurements (e.g., height, weight).