EVERYDAY SCIENCE

Detailed explanation-1: -In experiments, researchers manipulate independent variables to test their effects on dependent variables. In a controlled experiment, all variables other than the independent variable are controlled or held constant so they don’t influence the dependent variable.

Detailed explanation-2: -A controlled experiment is a scientific test done under controlled conditions, meaning that just one (or a few) factors are changed at a time, while all others are kept constant.

Detailed explanation-3: -An independent variable is a variable that we can change or control in a scientific experiment. It will represent the cause or reason for an outcome. Therefore, independent variables are the variables which the experimenter changes to test their dependent variable.

Detailed explanation-4: -An independent variable is a variable that is being manipulated or changed through the experiment. Within the controlled experiment, the hypothesis being tested will point at the independent variable.