Caitlin's+Project+2

__Brass__
 * made of copper and zinc
 * doesn't become brittle at low temperatures like mild steel
 * has a range of colors
 * red
 * gold
 * yellow
 * silver
 * pathogens that can be spread by touch cannot survive on brass for more than a few hours

that of pure copper || __Why is brass used to make musical instrments?__
 * Chemical Properties || Physical Properties ||
 * relatively resistant to tarnishing || excellent thermal conductivity ||
 * || electrical conductivity ranges from 23%-43%
 * || density: 8.36g/cm 3 ||
 * || melting point: 865 degrees Celcius ||
 * || luster: metallic ||
 * || very malleable ||
 * || has low friction ||
 * brass is very malleable
 * ‍‍‍‍‍‍ this helps in making the instrument, for it is easy to form and shape into tubes and bells ‍‍‍‍‍‍
 * brass has a metallic luster
 * it makes the instrument look as good as it sounds
 * brass is relatively resistant to tarnish
 * this means that the instrument won't rust
 * brass has high acoustic properties
 * this is a benefit towards the sound of the instrument

__Brass Instruments__
 * French Horn
 * Baritone Horn
 * Mellophone
 * Trumpet
 * Cornet
 * Tuba
 * Trombone

media type="youtube" key="sTvYxP9tjQs?rel=0" height="315" width="420"media type="youtube" key="NQIP53NEBIY?rel=0" height="315" width="420" media type="youtube" key="8NAaRQUTp9g?rel=0" height="315" width="420"media type="youtube" key="G5LqrMcq1QE?rel=0" height="315" width="420"

__Sterling Silver__
 * 92.5% pure silver, 7.5% mix of other metals
 * commonly mixed with copper
 * they add the other metals because silver is too malleable to work with
 * though it is stronger than silver, it is still highly malleable
 * has high antibacterial quality
 * pathogens don't survive long on its surface
 * scratches easily
 * careful not to over-polish
 * polish and cloth must be non-abrasive
 * over-polishing wears it away
 * is not magnetic
 * easy to solder

plastic wrap to cause discoloration || malleability: harder than pure silver || __Why is sterling silver used to make musical instruments?__
 * Chemical Properties || Physical Properties ||
 * less prone to tarnish than silver || ductility: can be drawn into wire ||
 * reacts with newspaper, rubber bands, and
 * || melting point: 961.93 degrees Celcius ||
 * || luster: metallic ||
 * || high electrical and thermal conductivity ||
 * sterling silver is very malleable
 * this helps when forming instruments
 * sterling silver has a metallic luster
 * this makes it pleasing to the eye
 * sterling silver has high antibacterial quality
 * pathogens will die quickly on the instruments
 * sterling silver is easy to solder
 * this assists in making the instruments

__Sterling Silver Instruments__
 * professional flutes
 * saxophones



__Fun Facts__
 * Thought it is a woodwind instrument, the saxophone is actually made of brass.
 * Some instruments that are classified as "brass" instruments are not actually made of brass.
 * They can be made of other materials such as wood.
 * One of these instruments is the alpine horn.
 * The only form of silver that won't tarnish is a plated form such as rhodium plated.

__Websites__
 * []
 * []
 * []
 * []
 * [|http://en.wikipedia.org/wiki/Sterling_silver#Tarnish_and_corrosion]