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Lead

Lead. Andrew S. Introduction. Lead: Is a bluish-white, shiny metal Stains to dull gray when it is exposed to air Is extremely soft Is a poor electricity conductor Is capable of being shaped and molded Is an increasing poison Does not corrode. Lead. Symbol: Pb Atomic Number: 82

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Lead

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  1. Lead Andrew S.

  2. Introduction Lead: • Is a bluish-white, shiny metal • Stains to dull gray when it is exposed to air • Is extremely soft • Is a poor electricity conductor • Is capable of being shaped and molded • Is an increasing poison • Does not corrode

  3. Lead Symbol: Pb Atomic Number: 82 Atomic Weight: 207.2 Element Group: Metal Melting Point: 600.65 °K/327.5 °C Boiling Point: 2013 °K/1739.85 °C Discovery: Known to the ancient world at least 7000 years ago Discoverer: Unknown

  4. Effects on Animals • Poisoned birds can lose ability to walk or fly, and can experience sever weight loss and eventually die • It affects the animal’s central nervous system • It stops their ability to produce red blood cells

  5. Effects on The Environment Plants: • Lead pollution covers the surface of the leaves making it less available to the light • The plant eventually dies because of the lack of light and the reduced rate of photosynthesis Micro-organisms: • Lead can wipe out millions of bacteria and fungi on leaves and in the soil

  6. Uses of Lead Lead is used for: • X Radiation shields • Sound and Vibration Absorber • Batteries

  7. Interesting Facts • Lead dust is invisible and it is so tiny that it passes through masks and filters • Lead poisoning causes learning and developmental disabilities • Children who look healthy can have high amounts of lead in their blood

  8. Works Cited Anne, Marie Helmenstine. “Lead.” Chemical & Physical Properties. 22 April 2010 <http://chemistry.about.com/od/elementfacts/a/lead.htm> Greene, Demi. “Effects of lead on the environment.” LEAD Action News. 25 April 2010 <http://www.lead.org.au/lanv1n2/lanv1n2-8.html> “Lead Facts.” Substance Fact Sheets. 25 April 2010 <http://www.dhss.mo.gov/hsees/lead.html> “Lead Facts.” The Basics About Lead Paint. 25 April 2010 <http://www.leadpro.com/facts/html> “Lead Fishing.” Anglers and Aquatic Resource Protection. 25 April 2010 <http://www.epa.gov/owow/fish/animals.html>

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