It is the variables you will not change to keep the experiment a fair test, they should be kept constant to show how your independent variable affects your dependant variable.
it is a variable that you allow to stay the same throughout the experiment.
The variable is the characteristic being changed while the control is left as is to see what would normally happen.
it's better to have a control but no you do not have to have a control in a science fair project
controlled variable, dependent variable and independent variable
it means insturction
Independent variable and dependent variable
It is what the scientist measures
yes
a control group is a sample that is treated like the other experimental groups except that the independent variable isn't applied to it
sup
It's basically asking what the definition of a responding variable is and the dictionary says, The variable that changes.
the control can not change ever its like a constant and the dependent variable changes according to the independent variable