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. Discovery: Known to the ancient world at least 7000 years ago
Lead
Symbol: Pb
Atomic Number: 82
Atomic Weight: 207.2
Element Group: Metal
Melting Point: °K/327.5 °C
Boiling Point: 2013 °K/ °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. Sound and Vibration Absorber
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 <
Greene, Demi. “Effects of lead on the environment.” LEAD Action News. 25 April 2010 <
“Lead Facts.” Substance Fact Sheets. 25 April 2010 <
“Lead Facts.” The Basics About Lead Paint. 25 April 2010 <
“Lead Fishing.” Anglers and Aquatic Resource Protection. 25 April 2010 <