Science: Variables, Control Group, Controls

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What is a control group in an experiment?

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A control group is a group in an experiment that does not receive the experimental treatment or variable, serving as a baseline for comparison.

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What is an independent variable?

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An independent variable is the variable that is deliberately changed or manipulated in an experiment to observe its effect on the dependent variable.

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What is a dependent variable?

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A dependent variable is the variable that is measured or observed in an experiment, which is affected by changes in the independent variable.

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What is the purpose of controls in an experiment?

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Controls are used to ensure that the results of an experiment are due to the independent variable and not other factors.

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What does it mean to have a 'normal' condition in an experiment?

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The 'normal' condition refers to the control group, which does not receive the experimental treatment and serves as a standard for comparison.

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How does one identify the independent variable in a hypothesis?

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The independent variable is the factor that is changed in the hypothesis to test its effect on the dependent variable.

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What is the difference between a control group and an experimental group?

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The control group does not receive the experimental treatment, while the experimental group does receive the treatment being tested.

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Why is it important to have a control group in an experiment?

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A control group is important because it allows scientists to compare results and determine if the independent variable had an effect.

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What is a variable in the context of an experiment?

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A variable is any factor, trait, or condition that can exist in differing amounts or types and can affect the outcome of an experiment.

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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.