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the part in the experiment that a scientist purposely changes
The factor changed is the independant varible, the thing that the scientist can change each time they run the experiment. The control is the part of the experiment that the scientist determines stays the same. Ex. They have one person eat a milk chocolate and a dark chocolate and then ask which one they like. The person is the control because it stays the same. The chocolate is the independant varible because the type changes.
the part of an experiment that changes is called the variable.
Environmental factors if you cannot control them.Variable factors if you can control them.See link below for easy explanation:In an experiment the scientist is able to change the independent variable. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens. - See more at: http://www.chacha.com/question/what-part-of-an-experiment-is-the-factor-that-you-change#sthash.iyH25Jac.dpufIn an experiment the scientist is able to change the independent variable. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens. - See more at: http://www.chacha.com/question/what-part-of-an-experiment-is-the-factor-that-you-change#sthash.iyH25Jac.dpuf
Yes unless they want to experiment
The control part of an experiment is usually the part that does not include any changes from the normal situation and has known and predictable results.
A parameter in an experiment that can change is known as a variable.
the difference between a constant in a graph and a constant in a experiment is that when on a graph, the constant is the thing that changes, and in a experiment it is the part that stays the same.
* independent variable:in an experiment there is only one variable and its set by the person carrying out the experiment . * dependent variable: measured in all set ups during the investigation. * controlled variables: are quantities that the scientist wants to keep constant. so , the part of the experiment that does not depend on the variable is the controlled variable.
An Independent Varible Means : Something that you don't change in your experiment.
Elements of scientific experiments that are different from the controls, are called independent variables.
Before a scientist performs an experiment, he should ask himself if it will harm anyone or anything. This is the ethical part. There are many areas of debate, so each scientist must answer the question for himself.