Question

What statement best describes an independent variable?
A. The factor that's changed by the experimenter and impacts the dependent variable
B. The factor that's not changed by the experimenter and is impacted by the dependent variable
C. The factor that does not change, but impacts the constant in an experiment
D. The factor that's changed by the experimenter and impacts the constant in an experiment

Answer 1

Have you tried looking up the meaning of independent variable?

Answer 2

The independent variable is the one which you are varying whereas the dependent variable is the one under investigation.

For example if you are investigating the effect of temperature on the rate of photosynthesis, then you would vary temperature and measure the rate of photosynthesis (e.g. by counting the number of bubbles released/minute) at that temperature. which means that the independent variable AFFECTS the dependent variable. So in the example i gave to you:

Independent variable = temperature
Dependent variable (which literally "depends" on a factor) = rate of photosynthesis

Therefore the answer is A

Answer 3

thanks a million :3

Answer 4

hey anytime ;)