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Answer the following questions about pencil drawing: - When were pencils first used? - What is graphite? - What is an HB pencil? - What happens when the H.

Sagot :

-Pencils were first used in 1662.
-Graphite is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure.
- HB is a graphite hardness/grading scale: the higher the number next to H, the harder and lighter/less dark the pencil lead is.
- The H stands for “hard.”