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No, they are made out graphite and clay. the only reason why they are called "lead" pencils is simply because way back in ancient greek times, they once used lead as a writing utencial. But after used a few times they quickly stopped the use of lead in pencils.
Graphite is a form of Carbon, so its carbon in lead graphite. Notice that lead itself is a different element but the term "lead graphite" is generally used for that black substance which makes the "lead pencils". Note that there is no lead in lead pencils, its carbon, in the shape of graphite.
'Lead' pencils never contained any lead. They are made of a mixture of graphite and clay.
Lead has never been used in pencils. The 'lead' in pencils is graphite, a form of carbon, mixed with clay.Modern pencils are the descendants of ancient writing instruments. In ancient Rome, scribes wrote on papyrus (an early form of paper) with a thin metal rod called a stylus, which left a light but readable mark. The ones made of lead worked best.When pieces of rock from a mineral deposit in England were found to be good for marking sheep, the people presumed it was a lead deposit. Then the pieces were made into the first pencils. Chemists said the deposit was actually graphite, a form of carbon, but 'lead pencils' were so popular that the name is still used to this day.
Pencils were never made with lead, they have always been made with graphite. When pencils were first made it was beleived that graphite was a type of lead, but science has now proven graphite is a type of carbon, not lead. Well, i didn't want to delete this person's answer, but it is wrong. In fact, lead was used in pencils for hundreds of years, but there was a major problem with using lead. These pencils would form lead oxide on the tips, making it difficult to write, so when people wanted to write, they would lick the lead of the pencil to get the lead oxide off. When people realized that this was dangerous because consuming lead (even in minute quantities) can cause brain damage, pencils began to be manufactured with graphite instead of lead. Coming back to your original question - I don't know when they switched to graphite, but I think that it was sometime in the first half of the 20th century.
both, lead is made of graphite.
The lead in pencils are not made out of lead, as is common belief. Pencil lead is made out of graphite.
Pencils were made of lead but it changed to graphite because they new the dangers of lead. 1564 was the time the United States switched to graphite
the lead in a lead pencil is made from clay and graphite
Yes. It is graphite
because it is not lead it is either graphite or a type of charcoal.
The lead in pencils is made of the element carbon, in the form of graphite. Graphite powder is mixed with clay and wax. The more graphite the pencil contains, the softer the lead, and darker the mark.
Zero, pencils are made with graphite not lead.
Pencils have never been made from lead. They are made with Graphite, a form of carbon. So you can not get lead poisoning from a pencil.
No, they are made out graphite and clay. the only reason why they are called "lead" pencils is simply because way back in ancient greek times, they once used lead as a writing utencial. But after used a few times they quickly stopped the use of lead in pencils.
Graphite is a form of Carbon, so its carbon in lead graphite. Notice that lead itself is a different element but the term "lead graphite" is generally used for that black substance which makes the "lead pencils". Note that there is no lead in lead pencils, its carbon, in the shape of graphite.
First, the 'lead' in a pencil is not lead it is a mixture of graphite (a form of carbon) mixed with clay (the more clay the 'harder' the pencil). The lead portion is extruded in a long rod and then cut into lengths. The wooden sheath is made in two halves which are glued together round the lead.