Identifying Variables

Front

What is an independent variable?

Back

The independent variable is the ONE thing you change in an experiment.

Front

What is a dependent variable?

Back

The dependent variable is the variable that you measure in an experiment.

Front

What is a constant in an experiment?

Back

A constant is a variable that does not change throughout the experiment.

Front

How many independent variables should be tested in a controlled experiment?

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Only one independent variable should be tested in a controlled experiment.

Front

What is the purpose of a controlled experiment?

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The purpose of a controlled experiment is to isolate the effect of the independent variable on the dependent variable.

Front

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 results of an experiment.

Front

What is the role of constants in an experiment?

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Constants help ensure that the experiment is fair and that the results are due to the independent variable.

Front

What is the difference between independent and dependent variables?

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The independent variable is changed by the experimenter, while the dependent variable is measured as a response.

Front

Can you have more than one dependent variable in an experiment?

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While you can measure multiple dependent variables, it is best to focus on one to maintain clarity.

Front

What is an example of an independent variable?

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In an experiment testing how light affects plant growth, the amount of light is the independent variable.