Home / Series / SciShow / Aired Order / Season 2015 / Episode 56

Why Do I Have to Use a Number 2 Pencil?

Why do exams always tell you to use a number 2 pencil? What happens if you don’t? Quick Questions explains!

English
  • Originally Aired April 21, 2015
  • Runtime 10 minutes
  • Network YouTube
  • Created August 5, 2018 by
    Administrator admin
  • Modified August 5, 2018 by
    Administrator admin