1. P OTASSIUM Vinya 7.4

2. P OTASSIUM

4. D ESCRIPTION Potassium is a: Light – soft Silvery white color It reacts violently in water

5. A BOUT P OTASSIUM Potassium is not found in free nature. It was the first metal isolated by electrolysis Potassium (Potash) is mined in Germany, Utah, California, and New Mexico It is an alkali metal

6. A BOUT P OTASSIUM Do we need potassium? We need Potassium for our body, Potassium is responsible for our heart beating and the movement of our muscle. It is for fluid balance in our body.

7. A BOUT P OTASSIUM The minimum amount of potassium we should consume per day is 2000 mg This can easily be obtained by eating vegetables and fruits Do not consume Potassium from salt such as Potassium Chloride, it can be dangerous for our life These are some food with high amounts of potassium: Bananas Milk Avocados Oranges Fish Dry Beans Peanut Butter Cantaloupe Mushrooms Spinach Potatoes Watermelon http://startupblog.files.wordpress.com/2009/04/banana1.jpg

8. D ISCOVERY Potassium was discovered by a British scientist, Sir Humphry Davy in 1807. He describe Potassium as, when it was thrown into water, "skimmed about excitedly with a hissing sound, and soon burned with a lovely lavender light.“ http://www.edu.xunta.es/con tidos/premios/p2004/b/viaxar /images/davy.jpg

9. P ICTURE G ALLERY http://www.liboxgoa.com/images/Potassiu m-permanganate-sample-full.jpg http://image18.websho ts.com/18/6/30/72/1941 63072zjzXGl_ph.jpg http://upload.wikimed ia.org/wikipedia/com mons/6/66/Potassium FeldsparUSGOV.jpg

10. U SES OF P OTASSIUM The Common use of Potassium: Fertelizer Glass Soap Substitute for table salt Medical Fertilizers Gunpowder Potassium nitrate, chloride & permanganatefruits and vegetables. http://www.icmag.com/gallery/data/500/1134potassium-deficiency1.jpg

11. F UN F ACTS The only metal that is lighter than Potassium is Lithium http://z.about.com/d/chemistry/1/0/f/3/1/Lithium_paraffin.jpg

12. O THER F ACTS Potassium has a lot of different types: Potassium Chlorate - is used to make fireworks and explosives Potassium Nitrate – is the main component in gun powder Potassium Bromide - has photographic uses. Potassium Iodide is used to make medicine

13. B IBLIOGRAPHY http://www.buzzle.com/img/articleImages/266654-1072-2.jpg “Major uses of potassium.” 25 April 2010. http://www.bishops.k12.nf.ca/science/chem/potass/untitled10.html http://www.bishops.k12.nf.ca/science/chem/potass/untitled10.html “What is potassium and its uses.” 25 April 2010..http://www.essortment.com/all/whatispotassiu_rrjp.htmhttp://www.essortment.com/all/whatispotassiu_rrjp.htm http://wordnetweb.princeton.edu/perl/webwn?s=potassiumhttp://wordnetweb.princeton.edu/perl/webwn?s=potassium 25 April 2010 “Facts about Potassium.” 25 April 2010. http://www.facts-about.org.uk/science-element-potassium.htm http://www.facts-about.org.uk/science-element-potassium.htm Helmenstine, Anne Marie. “Potassium Facts.” About.com. 25 April 2010 http://chemistry.about.com/od/elementfacts/a/potassium.htm http://chemistry.about.com/od/elementfacts/a/potassium.htm “Potassium.” 25 April 2010. http://www.ucc.ie/academic/chem/dolchem/html/elem/elem019.html http://www.ucc.ie/academic/chem/dolchem/html/elem/elem019.html