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I don't know for sure but I collect them and have about 277
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∙ 13y ago
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Which pencil lead is darkest?
Pencils have had no lead for many years.Generally, a softer graphite will have a darker color.A pencil with a high "B" rating will be soft and produce a darker color.
Why is graphite suitable to make pencil leads?
Another answer on answers.com claims, "It's a common misconception that pencil lead is or has ever been constituted of the element lead. It's true that thousands of years ago the element lead was formed into cylinders and used to make marks on papyrus, however, wooden pencils or any instrument since does not use lead (lead is a heavy metal and using pure lead in form can cause major health problems with extended exposure). Pencils now are made of graphite or some other pigment. However, graphite in solid form was discovered in the 16th century and at the time was thought to be some type of lead, which is why many people today still call pencil lead: lead."This seems to be the most plausible explanation.
How much does a pencil weigh?
A #2 graphite pencil made of wood weighs between 6 and 10 grams. The difference is in the thickness of the wood (cheaper pencils have thinner wood). But it depends on the pencil. There are many different types of pencils that are mainly used in art. There's an HB pencil which is just a regular office pencil, which is probably what you're measuring. But there are also others. There are 2B, 4B, 6B, 8B, and 9B. The higher the number, the darker the color of the lead and the softer the lead. So even though 9B is the darkest color, you'd think it would be the heaviest, but really HB is.
Why is the Venus Flytrap endangered?
Venus flytraps are endangered because people collect too many of them.
Why is there 25 million atoms in a pencil?
Atoms are very small.This is because pencil carry many atoms.
What element is pencil in?
Many people call it lead but it is actually graphite.
What size millimeter is the lead of a no 1 pencil?
.There are so many units of length.2 mm is the lead of a no 1 pencil .
What a pencil is made of?
The main body of a pencil is made from soft wood, the 'lead' is made from graphite. The lead can come in many different sizes depending on the pencil holding it.
How many cubic inches of lead in a pencil?
None. It is graphite not lead in a pencil. How much graphite in a pencil? About 2/3 cubic inch (=6" x pi * (3/16)^2)
How many words can you write with a average pencil?
With a pen it's about 10k With a pencil it's about 100k With a pen pencil with one lead it's about 3k
Which pencil lead is darkest?
Pencils have had no lead for many years.Generally, a softer graphite will have a darker color.A pencil with a high "B" rating will be soft and produce a darker color.
What is a boring unreactive metal which is not udes in pencil?
While there are many metals that are not used in pencils, the one you are thinking of is probably lead. The part of the pencil known as the lead is actually a mixture of graphite (a form of carbon) and clay, rather than actual lead.
Why is graphite suitable to make pencil leads?
Another answer on answers.com claims, "It's a common misconception that pencil lead is or has ever been constituted of the element lead. It's true that thousands of years ago the element lead was formed into cylinders and used to make marks on papyrus, however, wooden pencils or any instrument since does not use lead (lead is a heavy metal and using pure lead in form can cause major health problems with extended exposure). Pencils now are made of graphite or some other pigment. However, graphite in solid form was discovered in the 16th century and at the time was thought to be some type of lead, which is why many people today still call pencil lead: lead."This seems to be the most plausible explanation.
Was it possible for Lewis and Clark to use a lead pencil to record their expedition across the Rocky Mountains?
Yes it was possible. The first pencil was invented in 1795 and the Lewis and Clark expedition was from 1804-1806. And the Rocky Mountain expedition had many people to do it.
What is a juniperus viginianus?
Juniperus virginiana or the pencil cedar is not a cedar but a juniper. It is one of the hardiest and easiest of conifers and its wood is best for lead pencil casings. There are many cultivars.
How many people does it take to make a pencil?
2
Does led mean a led pencil?
Before the modern form of pencil we know today was developed, marks were made in wax with a sharp implement. Charcoal sticks or the burnt ends of sticks were sometimes used to mark with as well Eventually (some time in the 1500s) a natural deposit of Graphite was found in England. There was some confusion about what the graphite was and many thought it was a form of "lead." Which is where the term came from. These days the "lead" in your pencil is a combination of graphite and a clay binder. Please see the related link below. Also the expression "Lead in your pencil" is a euphemism for an erection.
