What is the difference between the control variable and the variable and the dependent & independent variable?

1. Control variable means--

2. Variable means--

AND

3. Independent variable--

4. Dependent variable--



how are they different also?What is the difference between the control variable and the variable and the dependent %26amp; independent variable?
These words are different in science than in math although they have the same idea they are not the same.

1. Control Variable..are those variables that are not changed throughout the trials in an experiment because the experimenter is not interested in the effect of that variable being changed for that particular experiment, for a scientific experiment, the control variable never changes.



2. Variable... is a symbolic number, letter which holds a certain value, the variable often represents the unknown



3.Independent variable... is the variable which can be manipulated. The independent variable is able to stand on its own.



3. Dependent Variable... Is the uncertain variable, and its outcome relies on the independent variables reaction.