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Controlling for extraneous influences are key for the scientific method. In an experiment the control is usually the subject that does NOT receive the treatment. So say if you wanted to see if aspirin helped with headaches, you'd need to give some people with headaches aspirin and some people with headaches no aspirin and see if the aspirin made any difference.

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Identify the variables that you need to control and the variable that you will change?

To conduct a controlled experiment, you need to control all variables except the one you are changing. The variable you change is called the independent variable, and the variable you measure in response is the dependent variable. Control variables are those that could potentially affect the outcome of the experiment but are kept constant to isolate the effect of the independent variable.


What dose variable mean in science?

A variable is an element in an experiment that you control. There should only be one variable in an experiment or the results will not be accurate.


What is an experiment with the variable left out?

A control experiment with respect to that variable. There may be several variables and it may be necessary to leave each one of them out in a different control.


What is a Control and a constant in elementary science terms?

A control in science is in an experiment that makes sure the science experiment only tests one variable. A constant is in an experiment and that is a variable that never changes.


What is Unchanging?

In an experiment, your control variable will not be caused to vary by the experiment. Think of 'cause and effect'. The independent variable is the cause, the result is the effect, and the dependent variable is the one that you leave to be changed by the experiment.


What was the control of the investigation?

The control of an experiment is one in which the independent variable is not manipulated. It is used as a comparison for all other aspects in the experiment.


In any experiment the one factor being tested is the variable control or the data?

The factor being tested in an experiment is the independent variable, which is the variable that is manipulated or changed by the researcher. The control variable is a variable that is held constant to prevent it from affecting the outcome of the experiment. The data collected in an experiment is the information or measurements obtained during the study to analyze and draw conclusions.


What is one way a scientist reject a experiment?

It can be rejected if there is no control variable.


Definitions of the 3 types of variables in doing an experiment?

The three variable in an experiment are independent, dependent, and controlled. The independent is the variable you control, the dependent is the variable that will change according to the independent. The control is kept constant so they do not affect the dependent.


Why is it important to control variables except one?

The variable you can't control is presumably the one you want to know. If you know one variable, it could be anything, weight, temperature, mass etc, and you know the result in the experiment, you can work out the missing variable and therefore the result of your experiment.


The part of an experiment that does not contain the variable is known as?

this group is called the control group. the one that changes is called the variable. as in, it can vary. :) hope this helps!


Why is it important to control all variables except one?

The variable you can't control is presumably the one you want to know. If you know one variable, it could be anything, weight, temperature, mass etc, and you know the result in the experiment, you can work out the missing variable and therefore the result of your experiment.