Variables

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What is a variable?

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A variable is a factor or condition that can change in an experiment.

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What is an independent variable?

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The independent variable is the factor that is changed or manipulated in an experiment to observe its effect.

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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.

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What is a responding variable?

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The responding variable is another term for the dependent variable, which is what we are observing or measuring.

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What is a controlled variable?

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A controlled variable is a factor that is kept constant to ensure a fair test.

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In an experiment, what does it mean to manipulate a variable?

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To manipulate a variable means to change it intentionally to see how it affects the outcome.

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What is the purpose of a hypothesis in an experiment?

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

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

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A control group provides a standard for comparison, helping 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 an experiment?

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An experiment is a procedure carried out to test a hypothesis and observe the effects of changing variables.