graphite
The grey or black core of a pencil is made of graphite which is a form (known as an allotrope) of the element carbon. To vary the hardness of the 'lead' in the pencil the graphite may be mixed with clay or some other substances.
The black substance in a pencil is called graphite. It is a form of carbon that is used in pencil cores because of its ability to leave marks on paper.
In the dialysis tubing bag experiment, if glucose and I2KI are present inside the bag, the color of the I2KI solution will turn blue-black due to the reaction of iodine with starch present in the glucose solution. This color change indicates the presence of glucose inside the bag.
The color of pencil lead streak is usually gray or black, depending on the hardness of the lead. The softer the lead, the darker the streak it creates.
A banana.
The grey or black core of a pencil is made of graphite which is a form (known as an allotrope) of the element carbon. To vary the hardness of the 'lead' in the pencil the graphite may be mixed with clay or some other substances.
It is impossible to know what is present inside a black hole, though it is theorized that a singularity is located at its centre.
creosote
Hard Black pencil.
An HB pencil is just a No. 2 Pencil HB stands for Hard Black
The black substance in a pencil is called graphite. It is a form of carbon that is used in pencil cores because of its ability to leave marks on paper.
No, sadly you can't if you absolutely have to than make the black pencil wet very wet
It is a pencil, painted black, made by Papermate.
....or is it mascara? Cataracts form on the inside of the eye, not the outside.
In 1567
The black stuff in the middle of the pencil is a mixture of graphite (an element that is mined) and clay.
A double sided pencil with black and red color, preferred by auditors.