10th grade is when I had physical science, so must've been 10th
   grade. I still have a 10 pg report I did on Black Holes that
   year later on.* It was JUST BEFORE Stephen Hawking came out with
   "A Brief History of Time", so I don't think any of his stuff
   showed up in it.* I should type it up.* Last time I checked,
   even though I wrote it in 1987/88, it still holds up I think :P
   So yeah, I was 15/16 most likely.