Sagot :
Answer:
The variable that is altered by the scientist is the independent variable. A good experiment has only ONE independent variable in order to guarantee a fair test. The scientist records the data they gather while altering the independent variable. For instance, when you open a faucet (the independent variable), you'll notice that more water is flowing as a result (the dependent variable). An experiment may have one, two, three, four, or more dependent variables.
Explanation: