The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...

Then, lay out your felt or material and measure the length of the long side. Using a pencil, make a mark at equally spaced gaps along the material. For example, if your material is 30cm ...

How Many Pencils Can Be Made Out of a Factory Batch of Graphite? A batch of graphite has just been delivered to this pencil factory in Germany. Once it’s been thoroughly mixed with clay, it’s ...

No.2 pencils are widely used, but you may not know what the number actually refers to. This video explains how pencils developed into their modern form and the significance of the labeled numbers.

An curved arrow pointing right. Student-grade colored pencils and professional-grade ones vary drastically not only in their price but how they're made. A set of 120 Faber-Castell Polychromos ...

And that made us realise that when a simple gesture ... This led Venkat to create www.education4all.info from where he initiated the pencil collection drive that served two objectives.