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Supplemental: If there are different variables on two sides of an equation, a change in either variable will inevitably change the variable on the other side to make the equation true. Example: A + B = C, where A = 5 and B = 6, C = 12. If A = 7 and B = 6, C changes to 13. As you can see, changing A to 7 from 5 changed C, but not B. The good rule of thumb being, if one side changes, the other side does as well. -Jonathan C. Holcomb _____________________________________________________________________________
I don't know in what context are you talking about.
But if you apply this question to everything you know the anser is NO.
A change in a certain variable does not implies a change in another one.
This does not mean that some variables are not affected by others, but the statement cannot be applied to every variable.
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What makes one variable cause the second?
A variable does not usually "cause" another. A change in one variable may result in a change in another. Such a change may be systematic (the relationship between the two variables is precise) or it may be statistical or correlational. The reasons for either type will often depend on disciplines of knowledge other than mathematics, such as physics or economics etc.
Does the independent variable really change independently of the other variable?
The relationship is a matter of cause and effect. An independent variable is given as one upon which another variable depends. So, for example, if you heat a metal pipe, the pipe expands. The amount of expansion is dependent upon the amount of heating that occurs, so expansion is the dependent variable, and the heating, which you may or may not control, is the independent variable. All it means is that if the independent variable ungoes a change, there is an associated and predictable change in the dependent variable. The two are linked inextricably, but one is cause, the other is effect, or to put it another way, you control the change in the dependent variable with input into the independent variable, but it doesn't normally work the other way around.
Why is it important to not change your variable in an experiment?
If you change more that one variable in an experiment, then when the result occurs, you won't know which variable caused the change.
What is the variable you control?
The Independent Variable is the one you change (Independent = I change)The Dependent Variable is the one you measure (It depends on something else)The Control is the one you keep the same! :)
What are science variables?
There are three different types of variables in science.Independent Variable: The one you choose to change. Or it is the cause of the change in the dependent variable. (Ex: amount/type of Fertilizer)Dependent Variable: The one you choose to observe. The one that receives the effect of the independent variable. (Ex: Plant ; the one you'll use with the fertilizer)Controlled Variables (Usually more than one): The ones that remain the same throughout the experiment.
