Thursday, March 21, 2013

Did you know-Misconceptions about pencil

Misconception: Pencils are made with lead

Pencils contain no lead, so there is no risk of lead poisoning if you stab yourself with one. Instead they are made up of a mixture of graphite and clay. Graphite, a crystallized form of carbon, was discovered near Keswick in the mid-16th century and was named from the Greek “graphein”, meaning “to write”.


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