What is keeping all variables the same except for the one being tested an example of

In a controlled experiment all variables are kept the same, except for the one being tested, which is called the experimental variable , or independent variable . The group that is not affected by the experimental variable is the control group . Very often a graph will be used to analyze the results of the experiment.

Explanation:

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the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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