Controlled variables are things that may effect the outcome of an experiment, like temperature are pressure or the amount of some substance used.
Dependent variables are those which change due to the conditions mentioned above.
These might be speed of the reaction, or the quantity of some product.
Dependent Variable
In a controlled experiment, the Independent variable refers to the variable that is manipulated or altered. The dependent variable, meanwhile, is the result of the experiment.
The two types of variables in an experiment are independent variables, which are controlled by the experimenter and can be manipulated, and dependent variables, which are the outcome or response that is measured in the experiment and may change in response to the independent variable.
the things you change
In a controlled experiment only 1 variable is being tested.
The number of dependent variables in an experiment varies, but there is often more than one. experiments also have controlled variables are quantities that a scientist wants to remain constant, and he must be observe them as carefully as the dependent variables.
Independent variables are variables that can be changed in an experiment, while dependent variables are variables that change as a result of an experiment. In other words, independent variables are what you change, and dependent variables are the results of the experiment.
The independent variable in an controlled experiment is what you are changing
Controlled variables are quantities that a scientist wants to remain constant and observe as carefully as the dependent variables.
To eliminate confounding variables, or variables that were not controlled and damaged the validity of the experiment by affecting the dependent and independent variable, the experimenter should plan ahead. They should run many checks before actually running an experiment.
Data that can not be controlled are placed on the vertical y-axis. These data are also called the dependent variables in an experiment.
There are 3 different variable. The independent variable is what you will be changing in the experiment and there should only be one. The dependent variable is what you will be measuring or observing. The controlled variable is what you will be keeping the same and there can be more than one. There is no limit on how many controlled variables you can have.