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Earn +20 ptsQ: Why is only variable changed in an investigation?
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An experiment in which only one variable the manipulated variable is changed at a time is called?
Controlled
What is a testable variable?
A testable variable is what you test several times for a scientific investigation or medical investigation.
What is the diffrence between dependent variable and independent variable?
the dependent variable changes with the independent variable. the independent variable only changes when changed by the experimenter. Time is usually an independent variable.
In a experiment only one variable is changed at a time while all the other variables are kept unchanged?
Control Variable is the answer
What is the variable that is changed?
The manipulative variable.
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