Why do I have to use a number 2 pencil?
1,356,647 Views
1,733 Questions Answered
Best of Web
Let’s Begin…
Why do exams always tell you to use a number 2 pencil? What happens if you don’t? SciShow explains.
Why do #2 pencils work the best for machines?
Sign in to answer questionAbout TED-Ed Best of Web
TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
Meet The Creators
- Video created by SciShow
- Lesson Plan created by Cynthia Silva
