Answer the following questions about pencil drawings: -When were pencils first used? - What is graphite? - What is an HB pencil? - What happens when the H# is increased?
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1. Pencils were first used in 1662.
2. Graphite is the crystaline form of Carbon with its atoms arranged in a hexagon.
3. HB is a pencil that is neither soft or hard.
4. When H gets increased the pencil the hardness is increased
(and b is for blackness of the pencil)
Hope this helps! Good luck!
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