Which is the part of the experiment that is the measurable outcome?
The data are the measurable outcome of an experiment.
In a science experiment you create or come up with a hypothisys or in other words you come up with a sugjested outcome of the experiment that you are doing. The hypothisys is the experimenters best edjucated guess of what the outcome of the experiment is going to be. After making your hypothisys, the experiment is then preformed. After the experiment is finished and the data is collected and analysed the outcome of the experiment…
The Independent Variable : It is the ONE thing you plan to be different in the experiment. You decide on what is going to be different BEFORE doing the experiment. Dependent Variable or Outcome Variable : It is the result you compare of measure in the experiment. Controlled Variable : This is the part of the experiment that you DO NOT CHANGE. This is what STAYS THE SAME.
Science is a process of observing, hypothesizing (guessing) about natural laws, predicting the outcome of an experiment, then proceeding with the experiment and comparing the results with the predictions. The "predicting the outcome" part depends heavily on mathematics, in most of the sciences. Without this step science cannot proceed.
When conducting an experiment, there is only one thing that should be allowed to effect the outcome of the the experiment and that is the variable. Everything else should be held constant. If it is not held constant, at the end of the experiment you will never know which variable actually affected the outcome. Variables are things that change.
Is it true that scientist who performs an experiment has no idea what the outcome of the experiment is going to be?
A perfect example of how theories are tested ! Theory predicts the outcome of the experiment, and the purpose of the experiment is to test the theory. If the outcome of the experiment is appreciably different from the one predicted by the theory, (and if the experiment itself was valid), then the prediction is flawed, and the theory must be either tweaked or trashed.