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variables
Environmental factors if you cannot control them.Variable factors if you can control them.See link below for easy explanation:In an experiment the scientist is able to change the independent variable. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens. - See more at: http://www.chacha.com/question/what-part-of-an-experiment-is-the-factor-that-you-change#sthash.iyH25Jac.dpufIn an experiment the scientist is able to change the independent variable. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens. - See more at: http://www.chacha.com/question/what-part-of-an-experiment-is-the-factor-that-you-change#sthash.iyH25Jac.dpuf
The word you're probably looking for is "confirmation". Technically, the result of an experiment is always "true", in that it represents what really happened. This may or may not be what you expected to happen. and there may be factors you're unaware of, but still, the result is truly what did happen.
The answer you predict before starting the experiment is your hypothesis.
controlled experiment :D
variables
changable factors
Variables.
The factors which you change (vary) are called variables.
Factors that are kept the same in an experiment are called constants.
They are also called 'parameters'.
Variables
variables
constants.
variables I am like 100% sure!!!!
Controlled parameters
In an experiment, factors that you change are called independent variables.