What Is a Constant in Science?

In accordance with the scientific method, a constant is a variable that cannot be altered or is not altered on purpose during an experiment. Some constants are chosen by the scientist to regulate an experiment, but others are more universal and beyond his or her control.

Any experiment utilising the scientific method will contain both constant variables and experimental variables. The factors that a scientist chooses to alter in order to examine their effects are experimental variables. Constants are variables that are held constant to guarantee that all observed effects are the consequence of an experimental variable.

If a researcher wished to examine the effects of temperature on the growth and development of garden snakes, temperature would be the experimental variable. All other variables must remain constant to prevent producing erroneous data. Numerous variables, like the size of the cage, the amount of light, the food, and many more, must remain consistent to ensure precise results and the validity of the study. Those variables are constants. Some variables that are beyond the control of a scientist are nonetheless considered constants. Included among these universal constants are gravity, the speed of light, and the electrical charge. Universal constants do influence experiments, although they will remain constant during an experiment without the scientist’s intervention.

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