they are made of water vapour that boils the wood and graphite
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Pencils are typically made from a combination of graphite (for the writing core) and wood (such as cedar) which surrounds the graphite. The outer casing of the pencil may also be made from materials like plastic or metal.
A material lead is typically made of graphite, which is a form of carbon. Graphite is highly conductive and commonly used in pencils for writing and drawing.
Graphite is the primary material found in pencils, which is a form of carbon. Graphite is mixed with clay to create the writing material used in pencils.
Graphite is the material used in pencils instead of lead. Graphite is a form of carbon that leaves marks on paper when it is used in a pencil. Contrary to popular belief, pencils do not contain lead.
Pencils use a material called graphite to write. Graphite is a form of carbon that leaves a mark on paper when it is rubbed against it.
Pencils are typically made from a combination of graphite and clay. The ratio of graphite to clay determines the pencil's hardness or softness. The mixture is then encased in wood to create the familiar pencil shape.