What exactly are the independent dependent control and constant variables?

I have a story to find them %26amp;%26amp; its really confusingWhat exactly are the independent dependent control and constant variables?
In general,





Constants aren't variables at all... They stay the same no matter what, and don't ';vary';.





Control variables are controlled by you. They usually stay the same, but you can set them how you would like.





Independent variables change on their own, and dependent variables change based on others, typically on independent variables.What exactly are the independent dependent control and constant variables?
I assume you are talking about a science experiment in which the ';constant'; or ';controlled variables'; would be the things that don't change in the experiment, the ';dependent variable'; is the observable variable, or the thing impacted by the ';independent variable';.





* The independent variable answers the question ';What do I change?';.


* The dependent variables answer the question ';What do I observe?';.


* The controlled variables answer the question ';What do I keep the same?';.