Group 1, INDEPENDENT VARIABLE, factor that a researcher changes, controls, or manipulates in an experiment to test its effects on another factor. I, It acts as the "cause" in a cause-and-effect relationship and stands alone, meaning it is not changed by the other variables you are measuring., Amount of water given to each plant., MANIPULATED VARIABLE, Group 2, DEPENDENT VARIABLE, is what you measure in an experiment, It is the outcome that changes in response to the independent variable., its value depends on another factor, Height of the plant or number of leaves., Group 3, CONTROLLED VARIABLE, any factor that is kept the same during a test or study., It is not what you want to test, but you keep it steady so it does not change the final result., This keeps the test fair and clear, Amount of sunlight, type of soil, and size of the pot

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