What would be in your sciene fair and why?

Question: What would be in your sciene fair and why?
- Keywords:
  fair,
  fun,
  job,
  science,
  spare time
Asked by luckylouise to Steve on 22 Jun 2011.
- Steven Daly answered on 22 Jun 2011:
  
  I would have a lot of simple experiments that have really interesting results, and that are important to modern chemistry. So things like showing liquid oxygen, other interesting (and loud) reactions. I haven’t really planned anything yet, because that would be a bit premature!

Question: What would be in your sciene fair and why?