There is no such thing as a "density independent variable".
The independent variable is the thing you are changing/varying. The dependent variable is the thing you are measuring. This variable should be affected by the independent variable. Control variables are anything that must be kept constant. If there are any other factors which affect the dependent variable, then these need to be controlled so that they do not have any significant effect (basically ensuring that you are actually measuring the effects of the independent variable).
An independent variable doesn't depend on anything else in the equation. YOU get to decide what it is, and it can be whatever you want. That's why it's called "independent" ... the only thing it depends on is YOUR whim.
The independent variable is the simple machine used and the thing your sliding it on.
The independent variable is the thing you change, the dependent variable is the variable that changes because of the independent variable, it could also be referred to as the effect, and the control group is the constant, the thing that stays the same and the variable that you compare your results to.
The variable that is intentionally changed in an experiment is called the independent variable.
The variable that is intentionally manipulated or changed by the experimenter is called the independent variable.
There is no such thing as a "density independent variable".
The variable that the experimenter deliberately changes is called the independent variable. The thing you are observing as a result of the different 'values' or 'conditions' of the independent variable is called the dependent variable. If the experiment is well controlled, then you can have some confidence that changes in the dependent variable have come about directly as a result of your changes to the independent variable.
The thing that is being studied in an experiment is called the "dependent variable." This variable is the factor that is being measured or observed for changes in response to the manipulation of the independent variable.
The independent variable is also called an experimental variable. It is the variable being manipulated in the experiment in order to show the effect on the dependent variable. The dependent variable is also called the response variable. It is the variable being observed in the experiment. A change in the independent variable is what causes the change (if any) in the dependent variable, which is the purpose of the experiment.
independent variable
The independent variable is the thing you are changing/varying. The dependent variable is the thing you are measuring. This variable should be affected by the independent variable. Control variables are anything that must be kept constant. If there are any other factors which affect the dependent variable, then these need to be controlled so that they do not have any significant effect (basically ensuring that you are actually measuring the effects of the independent variable).
An independent variable doesn't depend on anything else in the equation. YOU get to decide what it is, and it can be whatever you want. That's why it's called "independent" ... the only thing it depends on is YOUR whim.
Independent variable, is variable that the experimenter manipulates
The thing that the experimenter deliberately changes while observing is called the independent variable. This variable is intentionally manipulated to observe its effect on the dependent variable, which is the outcome being measured in the experiment.
The independent variable is the simple machine used and the thing your sliding it on.