pencil lead is not charcoal but rather graphite molded with clay and hardened
there is a simple answer at: http://www.instructables.com/id/E6J0VKCO8JEXCFDVUL/.
you can make pencil material
5- two by using the lead point of each pencil and 3 by using one lead point and the eraser end.
No
Carbon constitutes pencil lead, charcoal and diamond. Although they appear different in appearance, they are chemically the same. Diamond is shiny and hard due to the crystalline arrangement of carbon atoms in it. Graphite or pencil lead has such an arrangement, that there are free electrons which make it a conductor of electricity. Elements like this, which are chemically the same but exhibit different physical properties are called allotropes, and the phenomenon is termed as allotropy.
Graphite is used to make pencil lead, but it is not a form of coal.
A "pencil lead" is a mixture of the graphite allotrope of carbon mixed with clay and baked hard. While a pencil lead will conduct electricity, it can not be used to make a light bulb.
With wood and lead
Graphite.
Once the fire burned down, only the charcoal remained.
Pencil lead used to explode fairly easily when I lived in Bulgaria in 1995. We used to make it explode with only a lighter. It would take about a minute to make a 2 inch piece of lead explode. When I moved to America, I was sad to find that American pencil lead does not explode.
It is possible using activated charcoal.