A Sketchy History Of Pencil Lead | NPR’s SKUNK BEAR

A question from the 5th graders at Green Acres School in Lebanon, OR sent us on a quest to find the origin of pencil lead. ↓↓Links↓↓ SUBMIT A QUESTION HERE: SUBSCRIBE: TUMBLR: TWITTER: More about the fascinating history of pencils here: Credits: Produced by Ryan Kellman and Adam Cole Senior Editor: Alison Richards Supervising Editor: Anne Gudenkauf Production assistance: Bronson Arcuri, Elissa Nadworny Additional images by: Gerhard Boeggemann NASA, ESA, F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer and the HUDF Team (STScI). Copyright © 2016 NPR. All rights reserved. Visit our website terms of use for further information. For permission to reuse this video, visit our permissions pages at