Pure
Graphite and clay are the two elements that combine to form pencil lead. Clay is used as a binding agent, while graphite provides the writing substance in pencil lead.
No, a pencil is not poisonous. However, ingesting pencil lead or graphite can lead to an intestinal blockage or irritation.
Yes, eating lead from a pencil is harmful because lead is a toxic substance that can cause serious health effects when ingested, such as poisoning, stomach issues, and cognitive impairment. It's important to seek medical help immediately if you or someone else accidentally ingests lead from a pencil.
Lead pencils do not actually contain lead. The "lead" in pencils is actually graphite, which is not toxic to humans. However, if a person ingests a significant amount of graphite from a pencil, it could cause some gastrointestinal discomfort.
Its a mixture
Its a mixture
a soft metal substance like a lead beaa and not the kind you put in your pencil!:) clay and playdough and gum (ew!)
Pure
It has to do with the kind of graphite or material used as the lead for the pencil.
Graphite and clay are the two elements that combine to form pencil lead. Clay is used as a binding agent, while graphite provides the writing substance in pencil lead.
Water is a compound. A pure metal is an element. Graphite (a pencil lead) is the element carbon. These are all examples of a pure substance.
Pencil "lead" is actually made of graphite, which does not burn under normal conditions. The substance is used in pencils because it leaves a dark mark on paper, not because it is flammable.
In the USA, they no longer put lead in pencils. It is now graphite - a non-toxic substance.
Pencil lead is not actually made of lead, but rather a mixture of graphite and clay. The graphite provides the writing substance, while the clay helps bind it together and gives the lead its structure.
A typical lead pencil does not actually contain lead. The "lead" in a pencil is made of graphite, which is a crystalline form of carbon. Therefore, there is 0% lead in a lead pencil.
Yes, pencil "lead" is not actually lead metal but graphite, which is a form of carbon. So, pencil lead is Pb (lead) free.