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By Adriana Lukovic & Jessica Berk . http://geography.howstuffworks.com/united-states/geography-of-nevada.htm/printable. Silver… In Nevada. What Is It?.
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By Adriana Lukovic & Jessica Berk http://geography.howstuffworks.com/united-states/geography-of-nevada.htm/printable Silver…In Nevada
What Is It? A white, ductile metallic element, used for making mirrors, coins, ornaments, table utensils, photographic chemicals, and conductors. Conductors : a substance, body, or device that readily conducts heat, electricity, sound, etc. (Silver." The Columbia Electronic Encyclopedia, Sixth Edition. ) http://www.kitchensbedfordshire.co.uk/art/sliding-doors/ST3000-white-silver-mirror.jpg
Silver Characteristics • Hardness 2.5 – 3 • LusterMetallic • Streak Light silvery gray • Color White or dull gray • Cleavage None • Fracture Jagged ("Silver.")
Where Can It Be Located? • A majority of silver are located in plantations called mines. The most popular and known mines are in Nevada. Nevada’s silver production in 2005 was 9.946 million ounces. (Silver Mining and Exploration )
SO WHAT DOES THIS MEAN FOR THE PEOPLE AROUND THE MINE AND THE WORKERS THAT WORK IN IT? • SO WHAT (http://wevegotseoul.files.wordpress.com/2009/04/man_face_mask_pollution.jpg)
Health Effects Of Silver • Eye contact- causes severe cornea problems. CAN BLIND YOU! • Ingestion hazards: toxic. May cause stomach discomfort, nausea, vomiting, diarrhea, and narcosis. • Also can cause: • - Anemia- is a decrease in normal number of red blood cells (Red blood cells have the important job of picking up oxygen from the lungs and carrying oxygen to all of the other cells of the body.) • - Brain damage- Not severely, causes enormous migraines and you loose brain cells from the toxic fumes. (Silver-Ag. Lenntech) http://www.velonews.com/files/images/blood_cells-copy.jpg http://cpapandmore.files.wordpress.com/2009/03/brain-damage.jpg
Environmental Effects Of Silver • Environmental issues can include erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater and surface waterby chemicals from mining processes. (Silver Compounds) Sinkhole Erosion http://www.leo.lehigh.edu/envirosci/enviroissue/sinkholes/images/sinkhole.jpg http://www.maine.gov/dep/blwq/images2/erosion1a.jpg
One of five known grizzly bear populations in the lower 48 states faces extinction due to a silver mine(Wildlife Impacts) • Picture- http://msnbcmedia4.msn.com/j/ap/bc995cfa-e701-4408-b968-cc09f9776000.hmedium.jpg
In 1995 at least 342 snow geese died in Elko, Nevada. They were killed by the extreme acidity of the water eating away their throats. (Silver-Ag. Lenntech ) http://farm1.static.flickr.com/204/442477741_dacdc3b5ce.jpg?v=0 http://www.magazinewood.co.uk/userimages/Canadian-Geese.jpg
Nevada, stop contaminating our animals and hurting our people!
Resources • Silver." The Columbia Electronic Encyclopedia, Sixth Edition. Columbia University Press., 2003. Answers.com 22 Feb. 2006. <http://www.answers.com/topic/silver>."Silver." Oracle ThinkQuest Library. Ed. Chris Pellant. Web. 29 Oct. 2009. http://library.thinkquest.org/05aug/00461/silver.htm.Alden, Andrew. "The Nevada Silver Rush." About Geology - The Complete Guide to Geology. Web. 27 Oct. 2009. http://geology.about.com/od/geology_nv/a/nevadasilver.htm.Peterson, Jeffery. "American gold and silver rushes gold rush history." Archaeology anthropology ancient civilizations. Web. 29 Oct. 2009. http://www.archaeolink.com/american_gold_rushes_gold_rush_h.htm.Wilkins, George. "Virginia City Nevada Silver Rush Postcard." Postcards From America 50 State Travel Adventure. Web. 29 Oct. 2009. <http://www.postcardsfrom.com/t1/990706.html>. • Howstuffworks "Geography of Nevada"" Howstuffworks "Geography" Web. 16 Nov. 2009. <http://geography.howstuffworks.com/united-states/geography-of- nevada.htm/printable>. • Silver and Silver Compounds: Environmental Aspects (CICADS 44, 2002)." IPCS INCHEM. Web. 16 Nov. 2009. <http://www.inchem.org/documents/cicads/cicads/cicad44.htm#6.0>. • Silver-Ag. Lenntech Water treatment. Web. 15 Nov. 2009. <http://www.lenntech.com/periodic/elements/ag.htm>.