What is the dependent, independent and the controlled variable?

in this experiment we have to find the best coin shiner using 5 coins and 4 different products (im choosing vinegar, coke, disinfectant and milk) we put 4 coins in the products for a period of time then take them out and observe the results.



in the report we have to state the independent variable the dependant variable and the controlled variable im pretty sure that the control is the untouched coin.



thanks for your help.What is the dependent, independent and the controlled variable?
An independent variable is one that's results do not change depending on other changes to the experiment. This would make the coin shiners the independent variables.



The coin will change due to the different shiners, therefore it's results are dependent on the independent variable.What is the dependent, independent and the controlled variable?
You are right about the control. I think that the dependent variable is the coins that you put in the different liquids, and that the independent variable is the liquids themselves, because "if x is given, then y occurs", where x represents the independent variables and y represents the dependent variables



Independent variables answer the question "What do I change?".

Dependent variables answer the question "What do I observe?".

Controlled variables answer the question "What do I keep the same?"."