When did you know you wanted to be a scientist?

Question: When did you know you wanted to be a scientist?
- Keywords:
  career,
  experience
Asked by anon-239626 to David on 10 Mar 2020.
- David Threlfall answered on 10 Mar 2020:
  
  When I started GCSE at secondary school, I had to make some choices and I got much better grades in STEM subjects.

Question: When did you know you wanted to be a scientist?