Steph brown : )

chemical change

a change in the identity of substance due to the chemical propeties of that subtance

( you have a new subtance is it reveisible)

http://forums.introversion.co.uk/prisonarchitect/introversion/viewtopic.php?t=19&sta rt=4035

www.corrosionist.com

physical properties

Any charateristic of material that can be observed or measured with out changing the identity or the materrial

http://www.soccerballs2football.com/custom-soccer-balls.html

http://www.google.com/imgres?q=flat+soccer+ball&um=1&hl=en&safe=strict&clie