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A pencil writes with a soft grey material called graphite, not lead.

A pencil writes with a soft grey material called graphite, not lead.

People used to think it was lead, but it is really graphite mixed with clay. It slides onto paper to make a mark.

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More facts about School Supplies

An eraser makes tiny crumbs that lift pencil marks right off the paper. An eraser makes tiny crumbs that lift pencil marks right off the paper. Most pencils have six flat sides so they don't roll off the desk. Most pencils have six flat sides so they don't roll off the desk. Paper is made from trees that are turned into soft, mushy pulp. Paper is made from trees that are turned into soft, mushy pulp. Crayons are made from colored wax that can melt if it gets too warm. Crayons are made from colored wax that can melt if it gets too warm. One pencil can draw a line about 55 kilometres long. One pencil can draw a line about 55 kilometres long.