What is an independent variable?
A. the factor that is changed in an experiment
B. the educated guess
C. the proposed answer to the question
D. the experiment that the scientist regulates
Answer (1)
An independent variable is the factor that is changed in an experiment to observe its effects. It is different from the dependent variable, which is measured in response to the changes. An example would be changing the amount of sunlight to see how it affects plant growth. ;
