4.what variable can be changed or manipulared
A. Dependent variable
B. Experimental variable
C. Independent variable
D. Uncontrolled variable
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3
Answer:
The independent variable is the one that is changed by the scientist. To insure a fair test, a good experiment has only ONE independent variable. As the scientist changes the independent variable, he or she records the data that they collect.
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Answer:
Independent variable
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