i need it sounding relli samrt for my science prep!
2007-09-12 08:22:34 · 5 answers · asked by Milly Williams 1 in Education & Reference ➔ Homework Help
Your teacher will NEVER believe you wrote anything that's "really smart" judging on your "question".
2007-09-12 09:30:41 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Copper was first used by humans more than 10,000 years ago. A copper pendant discovered in what is now northern Iraq has been dated about 8700 B.C.
copper has many uses:
pennys: The copper on that penny maybe as old as the pharaohs, because copper has an infinite recyclable life. Copper, by itself or in any of its alloys, such as brass or bronze, is used over and over again.
copper tubing for plumbing
wiring copper is a great conductor of heat and electricity
bullets
copper and chloride mixure ..when ignited it burns blue and is used in fireworks
it is also used as an ornimental siding for buildings (although very expensive the building will rot before the siding does)
trace amounts of copper that we ingest is good for the formation of hemoglobin, it also keeps our blood vessels and bones healthy..2 milligrams everyday is what our body needs.
it also inhibits the growth of harmful microbes...that is why it is used in conjunction with chlorine in pools ... it is the copper that turns your hair green
copper in "natural" quantites is very essental to marine life
The ancient Egyptians applied perfumes and anointing oils to their body as early as 4000 BC. Even then, copper was a part of their cosmetics. The most popular colors were green and black. The green was originally made from malachite, an oxide of copper. (oxidation of copper: when exposed to air and water copper forms green crytals like iron forms red "rust")
If fed as a suppliment to cattle their chances of contracting diseases such as mad cow disease or bovine tb is greatly reduced.
there are some facts now go make a wonderful speech
2007-09-12 09:03:57 · answer #2 · answered by t 4 · 0⤊ 1⤋
wiring, electrical components, sheathing, many applications...
see
http://en.wikipedia.org/wiki/Copper#Applications
2007-09-12 08:48:12 · answer #3 · answered by Lisa D 4 · 0⤊ 0⤋
pipes & plumbing
2007-09-12 08:31:42 · answer #4 · answered by jon_mac_usa_007 7 · 0⤊ 0⤋
a penny....
2007-09-12 08:29:46 · answer #5 · answered by 2sexxxy32 4 · 0⤊ 0⤋