Identify Variables in a Scientific Investigation

Confused about Science variables? In this video, I use 5 experiments in order to help you gain an understanding of Science variables. For example, which car cooler is the coolest temperature in the summer. The different colors are your independent variable and what you are measuring which is temperature is your dependent variable. Your control variables would be same location, measuring the temperature the same way.
Does eating bananas lower your blood pressure? What would be your variables in this experiment?

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Will eating bananas for one week reduce the blood pressure in Male patients? Control variable in the experiment is Gender of the patients