Wednesday, May 12, 2010

What is the difference between a controlled variable and an uncontrolled variable?

In any type of experiment, you have controls, and variables. A control is something about the experiment that functions the exact same way, every time. It is something you can depend on. A (uncontrolled) variable is what you are trying to measure. You are not sure what the variable will do in certain situations, and thus the reason for the experiment. A controlled variable is in between the two. It is a factor of the experiment that will act differently, but not unexpectedly.





Example: You are doing an experiment to turn a glass of water red, using food coloring. Water is your control. It will behave like water every time you do the experiment. The food coloring is your controlled variable. You know it will turn the water red, but you don't know by how much. The amount of food coloring is you uncontrolled variable. You are conducting the experiment to find out how much food coloring turns the water red. Use too little, and the water will only turn pink. The amount of food coloring (uncontrolled variable) is what you are trying to figure out by doing the experiment. Hope this helps.What is the difference between a controlled variable and an uncontrolled variable?
Controlled variable is the one you can affect at your will, and uncontrolled variable is the one that does not depend on your will, for example. Your car speed is a controlled variable and the weather is an uncontrolled variableWhat is the difference between a controlled variable and an uncontrolled variable?
the ';un';..
One is controlled the other is not
There will be factors of an uncontrolled variable which you cannot account for nor predict.


Chaos theory.
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