Lead to that of primary lead; some refining processes may be skipped depending on the material recycled and its potential contamination. Of the sources of lead for recycling, lead–acid batteries are the most important; lead pipe, sheet, and cable sheathing are also significant. Contrary to popular belief, pencil leads in wooden pencils have never been made from lead. When the pencil originated as a wrapped graphite writing tool, the particular type of graphite used was named "plumbago" (literally, "act for lead" or "lead mockup"). Lead metal has several useful mechanical properties, including high density, low melting point, ductility, and relative inertness.
Lead paragraph Lead paragraph A lead paragraph (sometimes shortened to lead; also spelled lede) is the opening paragraph of an article, essay, book chapter, or other written work that summarizes its main ideas. Journalistic leads emphasize grabbing the attention of the reader. In journalism, the failure to mention the most important, interesting or attention-grabbing elements of a story in the first paragraph is sometimes called "burying the lead". Most standard news leads include brief answers to the questions of who, what, why, when, where, and how the key event in the story took place. In newspaper writing, the first paragraph that summarizes