Question

(Please help fast!) In an experiment, what is a variable? a It is the thing that can change. b It is the thing that always stays the same. c It is the thing that helps the scientist the most.

Answer 1

A variable in an experiment is the thing that can change or be changed by the researcher. Option a is the correct answer.Variables can be divided into independent variables, which are manipulated by the researcher, and dependent variables, which are observed and measured to determine the effect of the independent variable. In addition, there are also control variables, which are kept constant throughout the experiment to minimize the effect of extraneous factors.