Why do you need a control and a independent and dependent variable in an experiment?

without these you would have nothing to measure your results against.





in science we are testing our hypothesis.





you need things to happen freely. and make observations of that.


then you need to control the test. and see if it differs from the uncontrolled experiment.


then you need to take a variable out to see if that was the reason in the change of the outcome of the experiment.





then you can conclude that if x factor is eliminated then the result will be Y.


so x is the cause of the chain of events in your natural observation.





then that will lead to how you can manipulate the outcome of something by controllin that X factor.





Why do you need a control and a independent and dependent variable in an experiment?



This question has been asked and answered several times on this site. Go the search bar and type it in. Why do you need a control and a independent and dependent variable in an experiment?
to limit the amount of extrenuous variables on the test results.