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Study
How It´s Made: Pencils
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What 3 paints were used to colour the pencils?
Yellow Blackand Transparent
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Why are the grooves made in the wood filled with glue in the factory?
So they are less likely to break
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What 2 checks are made on the pencil in the fatory?
Lead quality and strenght test
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What are the grooves made in the wood filled with in the factory?
Glue
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What Year was the new type pencil lead invented?
1795
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What is used to make colored pencils?
Wax, clay and pigments
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What nationality was the chemist who invented the new type of lead?
French
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At what temperature is the lead?
800 º C
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What characteristics does the wood used to make pencils need to have?
soft enough to sharpen yet strong enough not to bend
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What 2 elements are mixed to make up LEAD in pencils?
graphite and clay
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Where was GRAPHITE discovered?
England
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What is attached to the pencil at the end the process?
An eraser
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