What Is a Constant in Science?

By Staff WriterLast Updated Mar 27, 2020 2:17:32 PM ET
constant-science
Marc Romanelli/Blend Images/Getty Images

In an experiment following the scientific method, a constant is a variable that cannot be changed or is purposely not changed during the experiment. Some constants are purposeful and selected by the scientist to control an experiment while others are more universal and beyond a researcher's control.

Advertisement