A pencil is a writing implement or art medium constructed of a narrow, solid
pigment core inside ... Most pencil cores are made of graphite mixed with a clay
binder which leaves grey or black marks ...
Here's a myth buster: there is no lead in pencils. Rather, the core is made up of
the non-toxic mineral graphite, known by the common name "pencil lead."
Nov 24, 2010 ... There was a form of writing instrument before the pencil called a stylus that
sometimes was made of lead. The stylus was a thin rod used ...
Nov 30, 2014 ... Pencils aren't made of lead. They're made of graphite, which people long ago
thought was a kind of lead.
www.ask.com/youtube?q=What Is Pencil Lead Made of?&v=CmCHSj2wTCI
Sep 27, 2010 ... Discovery / Science Channel's "How It's Made" Graphite Pencil Leads episode.
Pencil lead is made of a mixture of graphite and clay. The graphite is the part that
makes the dark mark on the paper. The clay is there because graphite on its ...
Nov 26, 2012 ... The 'lead' in a pencil has not been made of lead for centuries. The ancient
Egyptians, Greeks and Romans all used small lead discs to rule ...
Pencil lead is not lead at all; it's a combination of finely ground graphite and clay,
mixed with water ... Video: Scientists Develop Chips Made Mostly From Wood ...
Sep 22, 2015 ... Graphite is the key component of modern day pencil lead—in fact, lead is a
misnomer as it's actually made up of a mixture of graphite and clay.
Mar 22, 2015 ... Pencil lead isn't actually made of lead but a mixture of graphite and clay. The
darkness of the pencil depends on the proportion of graphite in ...