When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases.

Number 2 Pencils & Exams

Written by Lambert Varias | April 24, 2015

SciShow explains why a Number 2 or HB pencil is often required to answer multiple choice exams: it’s dark enough for scoring machines to detect yet light enough that it won’t register as a false positive when erased.


Advertisement

Home | About | Suggest | Contact | Team | Links | Privacy | Disclosure
Advertise | Facebook | Twitter | Pinterest | Sites We Like

Awesome Stuff: The Awesomer | Cool Cars: 95Octane
Site Design & Content © 2008-2024 Awesomer Media / The Awesomer™