Constants, also known as control variables, do not change during an experiment. These variables are kept consistent to ensure that the only factor being tested is the independent variable. Examples of constants include temperature, pressure, and time.
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Variables.
Variables.
An independent variable remains fixed during an experiment while the dependent variables change. The independent variable is typically manipulated by the researcher to observe its effect on the dependent variables.
Variables.
The definition of a variable is to change or changeable. All variables hold this quality.