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because there is no friction between pencils and glass and glass is harder than the lead in the pencil .and glass surface is smoother than the surface of paper
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∙ 11y ago
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Why rubbing lead pencil on a key makes it turn in the lock?
The material that made pencil to write is a mixture of graphite.
What is a wax pencil and how is it used in chemistry?
A wax pencil (or grease pencil) is often used to label test tubes in a laboratory. Wax pencils are used to mark non-porous surfaces, like glass, and are easy to clean off for re-use (with warm, soapy water).
Part of a pencil that is placed in a glass of water appears bent in relation to the part of the pencil that extends out of the water What is this phenomenon called?
Caused by refraction. The same effect causes a depth of water to be smaller than it really is.
Where the glass in the telescope quest?
nobody know if you do write it
How does the appearance of the pencil depend on level the of water in the glass changes?
it depends when you put it and depends that on how much you could put the water to what level it would be
Why can't you write on glass with pencil?
Glass is harder than the "lead", actually mostly graphite, in a pencil. Therefore, the glass can not be deformed by a pencil sufficiently to produce an adherent layer of graphite, as is required for writing.
Is writing on a rough surface easier than writing on a smooth surface?
Yes. Try writing on a piece of paper with a pencil, then try writing on a piece of glass with the pencil. It's harder to write on the glass because there is less friction.
WHY DOES Pencil lead wear out when you write with it?
when we write with a pencil the lid will going to complete because of that the pencil will wear out.......
How do you write in present tense we write?
we to write in pencil
Why a pencil writes on a paper but not on glass?
bec
Which last longer colored pencil or regular pencil?
It depends on how long the pencil is, how much you write, and if the pencil breaks a lot or not. If it's a long pencil, it'll last a while unless you write a lot or it breaks.
Why should Gary write the labels on paper in pencil why should he not write in ink?
With pencil you can erase, not with pen.
Why the was the pencil created?
to write
What is the function of a pencil?
the function of a pencil is to write with out getting your hands dirty and to be able to write on paper instead of stone.
Does a pencil remain the same when it is dipped in a glass of water?
Physically, the pencil remains a straight pencil. Optically, due to the refraction effect of water, the pencil will appear to be bent.
How do you write a nasty disgusting alliteration?
GeT yOuR pEnCiL tHeN wRiTe.
What does a refracted image look like?
A Refracted image is like an illusion. Which fools the brain e.g. You see a pencil but the pencil has split in two parts.Demonstration:You will need: Glass, Pen or Pencil and WaterSteps:1. Put the glass on a table,2. Fill the glass to about 3/4 quarters of water,3. Put the Pen or Pencil in the glass of water,4. See what happens to the pencil.See, it seems to have split.
