Identify that Variable!

Front

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 effects.

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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 is affected by the independent variable.

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What is a control in an experiment?

Back

A control is a standard of comparison in an experiment, which remains constant to ensure that the results are due to the independent variable.

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What does it mean to measure a variable?

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To measure a variable means to quantify it in order to analyze the effects of changes in the independent variable.

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What is the purpose of an experiment?

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The purpose of an experiment is to test a hypothesis by manipulating variables and observing the outcomes.

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How does changing the independent variable affect the dependent variable?

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Changing the independent variable is expected to cause a change in the dependent variable, which is what the experiment aims to measure.

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What is the relationship between independent and dependent variables?

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The independent variable is what you change, while the dependent variable is what you measure in response to that change.

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

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Having a control allows scientists to isolate the effects of the independent variable and ensures that the results are valid.

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

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An example of an independent variable could be the amount of sunlight the plant receives.

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

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An example of a dependent variable could be the temperature reading taken from a thermometer.