0
Graphite is an extremely soft material and is formed in layers as well. This combination of traits allows for the graphite to scrape off of the pencil tip and onto the paper.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Why is graphite used in the core of some pencils?
Graphite is used in pencils as the way its atoms are structured allow for the graphite atoms to slide off the pencil and onto the paper. It also is cheap and leaves a nice black mark on white paper. It bonds nicely to the clay used as the pencils "lead" and does not easily smear.
How do erasers erase?
Erasers pick up graphite particles, thus removing them from the surface of the paper. Basically, the molecules in erasers are 'stickier' than the paper, so when the eraser is rubbed onto the pencil mark, the graphite sticks to the eraser preferentially over the paper. Some erasers damage the top layer of the paper and remove it as well. Erasers attached to pencils absorb the graphite particles and leave a residue which needs to be brushed away. This type of eraser can remove the surface of the paper. Soft vinyl erasers are softer than the erasers attached to pencils, but are otherwise similar.
What are physical propeties for a pencil?
Collor: yellowSmell: like woodTexture: smooth, graphite has layers
can you erase colored pencil with a regular eraser?
I tried it many times, it does not come off all the way, but most of it comes off.
What is a chemical change for a pencil?
Collor: yellowSmell: like woodTexture: smooth, graphite has layers
How do pencils and crayons work?
Pencils work when the graphite core of the pencil is rubber off onto the paper and crayons are just the wax rubbing off onto the paper.
How does a pencil write on paper because there both wood?
the graphite in the pencil is soft, when you write/draw it rubs off on to the paper. (Graphite is a soft metal)
How is using a pencil an example of friction?
Because it's friction that rubs the graphite off the pencil on to the paper to make the words you write.
Is it a chemical change if you draw a picture with a pencil?
No, because graphite is structured in such a way that the layers glide. Whilst drawing with a pencil the layers are gliding which is leaving a mark on the paper, because the substances inside the pencil are being rubbed off. Hence, this is a physical change rather than a chemical change. The graphite remains graphite, the paper remains paper.
Who invented pencils and how do they write?
who invented the pencil, i don't know a pencil works because the sufrace of the paper, on a microscopic level, is very rough. the structure of the graphite that makes up the "lead" is of layers just 1 atom thick that can easily slide over each other and rub off upon contact. so when the pencil is moved over the paper, the rough surface causes the graphite to rub off onto the paper and become trapped in the dips and hollows of the surface
What are two carbon minerals and how are they different?
graphite, the substance that makes the lead of your pencil is mostly carbon in one form. It is very soft, which is what makes it work as pencil lead because as you run it across a piece of paper, the graphite rubs off onto the paper. diamond is pure carbon in another form, and is the hardest naturally occurring substance known to man.
What are two carbon minerals and how do they differ?
graphite, the substance that makes the lead of your pencil is mostly carbon in one form. It is very soft, which is what makes it work as pencil lead because as you run it across a piece of paper, the graphite rubs off onto the paper. diamond is pure carbon in another form, and is the hardest naturally occurring substance known to man.
Why is graphite used in pencil lead?
It is a soft, dark material that shows up well on white paper and can be rubbed off.
Why graphite is used as lubricant?
According to Experts, graphite is used as a lubricant because it is dry lubricant and a solid material with a greasy feel which makes for a good source for applications where oil cannot be used. Graphite is used inside pencils. It slips easily off the pencil onto the paper and leaves a black mark. Graphite is also a component of many lubricants.
Why graphite use as lubricant?
According to Experts, graphite is used as a lubricant because it is dry lubricant and a solid material with a greasy feel which makes for a good source for applications where oil cannot be used. Graphite is used inside pencils. It slips easily off the pencil onto the paper and leaves a black mark. Graphite is also a component of many lubricants.
What is a pencil lead made off?
It is made of graphite, or carbon.
Lead of a pencil made up of what?
Generally it's made of graphite. Graphite is a substance made of carbon. The carbon atoms are bonded together in a particular way that allows "sheets" of graphite to break off easily. When you write something, some of these sheets break off and end up on your paper.
