no the control does nothing
the control can not change ever its like a constant and the dependent variable changes according to the independent variable
it's better to have a control but no you do not have to have a control in a science fair project
A control group is the unaffected group in a science experiment.
A control is something you cannot or will not change. A variable is something that can be changed or will be changing. Example: We cannot change our sex... either male or female. We cannot change the country where we were born.
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.
Aims and means of science are to observe, change and control the natural phenomena.
the control can not change ever its like a constant and the dependent variable changes according to the independent variable
it's better to have a control but no you do not have to have a control in a science fair project
A control group is the unaffected group in a science experiment.
Control in a science experiment means it stays the same and you don't do anything to it.
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The control is the part of the experiment that is NOT allowed to change. It is put through the same environments changes as the Independent Variable so to limit the environmental effect to the conclusion.
A control is something you cannot or will not change. A variable is something that can be changed or will be changing. Example: We cannot change our sex... either male or female. We cannot change the country where we were born.
A control in a science fair project would usually be a separate running of the experiment where you don't change anything. Example: If you are testing the effect that music has on plant growth, you would grow a plant with no music.
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Chemical science, because yeast is irreversible. Chemical Change: Irreversible Physical Change: Reversible
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.