What Is the Difference Between Independent and Dependent Variables?

The two main variables in an experiment are the independent and dependent variable.

An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable.

A dependent variable is the variable being tested and measured in a scientific experiment.

The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the effect on the dependent variableis observed and recorded.

Reference

https://www.thoughtco.com/i-ndpendent-and-dependent-variables-differences-606115