variables
Constants are the factors which do not change. Variables are the factors which change. If that is what you are referring to.
Factors that are kept the same in an experiment are called constants.
A constant. It is important to ensure that only one factor changes in an experiment (called the independent variable). All other factors need to remain constant.
You don't want a lot of the factors && different things in an experiment to be changed because if they are all changed every now and then, it will completely change the experiment.
You don't want a lot of the factors && different things in an experiment to be changed because if they are all changed every now and then, it will completely change the experiment.
Extrinsic variables.
Controlled experiment. The thing you change is called the independent variable and the constants are the dependent variables. By only changing the independent variable, any results can be attributed to this.
The variable setup in an experiment is called the experimental design. This design includes all the factors and conditions that are manipulated or controlled in the experiment to test the research hypothesis.
An experiment in which all variables stay the same is called a "controlled experiment".
All factors in an expermient are called variables. The variable you can change yourself is called the independent variable; the one you expect to change and monitor accordingly (and where you get your results from) is called the dependent variable.
Your question is not clear. The only help that I can offer is this: When all else remains the same, and only the variable changes, this is called "ceteris paribus", which is Latin for "all else remains the same", approximately. So in an experiment you might say, "If we change the variable, ceteris paribus, I anticipate this outcome will occur." Hope this helps.
A scientific experiment must be done by something that can show change. All of these can be variables.