That’s a good question. I guess I officially I became a qualified scientist when I finished my degree three and a half years ago. However, a scientist is really someone who follows the scientific method. This is when you ask a question and come up with a hypothesis, then you test it using experiments, look at what they are telling you and try to conclude something from it. I’ve been doing that for a long time, so I don’t really know when I officially became a scientist, it just happened over time!