what are constants in an experiment

In an experiment, constants are values that are kept the same either during or between experiments. They are also known as control variables. Constants are important in experiments because they help increase the validity and accuracy of the experiment or study by ensuring that the only variable being tested is the independent variable. Examples of constants in an experiment include temperature, humidity, pressure, experiment duration, sample volume, and chemical purity. Constants are measurable, but they cannot be changed during the experiment or in-between them.