Introduce middle school scientists to scientific variables and the scientific method with a musical video. The song is a delightful parody of One Direction's "What Makes You Beautiful." It belts out the definitions of controlled, manipulated, and responding variables, and explains why it is important to know which variable is which when doing a scientific experiment. While the song plays, accompanying visuals show various aspects of conducting an experiment, such as steps in the scientific method, flow charts, tables of data, and graphs.