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How can you test if lead in a pencil is harder than lead metal itself?

The 'lead' or graphite in a pencil is softer. Try writing on paper, the pencil will write, the real lead will not


Is feldspar softer than pencil lead?

No, feldspar is not softer than pencil lead. Pencil lead, which is made of graphite, has a higher hardness on the Mohs scale compared to feldspar. Feldspar is typically around a 6 on the Mohs scale, while graphite is around 1-2.


Is a No. 1 pencil harder or softer than a No. 2 pencil?

It's softer. #1 softest, #2 slightly harder, #3 harder than #2, etc.Softer.a #1 pencil is softer than a#2 pencil


Which pencil lead marks the darkest 2B or 6B?

A 6B pencil lead will generally mark darker than a 2B pencil lead. The higher the 'B' number, the softer and darker the lead.


What is a form of calcium carbonate softer than marble but harder than chalk?

Limestone is a form of calcium carbonate that is softer than marble but harder than chalk. It is commonly used in construction materials and can be found in different shades depending on the mineral impurities present.


Explain Why blackboards are not scratched by chalk but by the sand embedded in the chalk?

Blackboards are typically made of a material that is softer than chalk, such as slate or porcelain. When you write on a blackboard with chalk, the friction between the chalk and the board causes the chalk to wear down and leave behind tiny particles of sand or abrasive material embedded in the chalk. These abrasive particles then scratch the surface of the blackboard as you write, creating marks that can be difficult to erase.


Is a 3B pencil darker than a 2B pencil?

Yes, a 3B pencil is darker than a 2B pencil. The higher the number in the pencil grade, the softer the graphite and therefore the darker the mark it will make on paper.


Which is thicker a 7mm or 9mm pencil lead?

A 9mm pencil lead is thicker than a 7mm pencil lead.


Which pencil lead is darkest?

The darkness of pencil lead is determined by its graphite-to-clay ratio. The higher the graphite content, the darker the lead. Therefore, a pencil lead labeled as "HB" or "B" will be darker than a lead labeled as "H" or "F." The darkest pencil lead commonly available is typically labeled as "6B" or "8B," indicating a high graphite concentration.


What does the B means on a pencil?

Many pencils across the world and almost all in Europe are graded on the European system using a continuüm from "H" (for hardness) to "B" (for blackness), as well as "F" (for fine point). The standard writing pencil is graded HB.


Which is thicker a 5mm or 7mm pencil lead?

A 7mm pencil lead is thicker than a 5mm pencil lead. The diameter of the lead determines its thickness, so the lead with a larger diameter will be thicker.


Which is a softer lead 6b or a 8b?

b stands for black. 8b is blacker (softer) than 6b.