Which is true of graphite pencils? Select all that apply.
(4 points)
Responses
They are made of a soft, natural material.
They are made of a soft, natural material.
They are rated according to how dark of a mark they make.
They are rated according to how dark of a mark they make.
The less clay there is in the pencil, the darker the mark it makes.
The less clay there is in the pencil, the darker the mark it makes.
The higher number of H (hardness) in a pencil rating, the more clay there is in the pencil.
The statement "The higher number of H (hardness) in a pencil rating, the more clay there is in the pencil" is false. The higher number of H in a pencil rating indicates that the lead is harder and contains less clay.
The correct statements are:
- They are made of a soft, natural material.
- They are rated according to how dark of a mark they make.
- The less clay there is in the pencil, the darker the mark it makes.
The statement "The higher number of H (hardness) in a pencil rating, the more clay there is in the pencil" is not true. The higher number of H actually indicates a harder lead, not more clay. The higher the H number, the lighter the mark it makes.