Changes

'''Pencils''' are writing utensils generally made of [[wood]] or [[plastic]] with a [[graphite]] center used to make marks on a surface. T The graphite core is known as 'lead', though it isn't, because early pencils did use lead not graphite. They differ from [[pens]] because their marks can be erased. Number two pencils are preferred for standardized tests, though a great many other densities of graphite are used for other purposes. Pecil grades vary from soft (B) to hard (H), the standard grade being HB. There is a pencil museum in Kendal, Cumria, England which is very good on a rainy day.

'''Pencils''' are writing utensils generally made of [[wood]] or [[plastic]] with a [[graphite]] center used to make marks on a surface. T The graphite core is known as 'lead', though it isn't, because early pencils did use lead not graphite. They differ from [[pens]] because their marks can be erased. Number two pencils are preferred for standardized tests, though a great many other densities of graphite are used for other purposes. Pecil grades vary from soft (B) to hard (H), the standard grade being HB. There is a pencil museum in Kendal, Cumria, England.