Multiple choice general knowledge science & technology

The lead of a pencil mainly contains

  1. plastic

  2. carbon black

  3. lead

  4. graphite

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pencil 'lead' is actually graphite, a form of carbon. The misconception comes from graphite historically being called 'black lead.' Plastic is used in pencil casings, carbon black is a pigment, and lead is toxic and never used in pencils.