Arron Young
Physical and Chemical Changes
Physical Change
The physical property of a substance change but the identity of the substance does not change
Sources
http://www.google.com/imgres?q=watermelon&hl=en&safe=strict&client=safari&sa=X&rls=en&biw=963&bih=524&tbm=isch&prmd=imvnse&tbnid=YqelQ-FGna66DM:&imgrefurl=http://www.statesymbolsusa.org/Oklahoma/stateVegetable.html&docid=UqIogAYwAgB_EM&imgurl=http://www.statesymbolsusa.org/IMAGES/Oklahoma/watermelon-slices.jpg&w=380&h=285&ei=CLWGUKmzEYrGygGD6YHgCw&zoom=1&iact=rc&dur=4&sig=116083485342309310207&page=1&tbnh=191&tbnw=230&start=0&ndsp=7&ved=1t:429,r:3,s:0,i:79&tx=85&ty=100
http://www.statesymbolsusa.org/Oklahoma/stateVegetable.html
Chemical Change
A change in the identity of a substance due to the chemical properties of that substance (Do you have a new substance?) (Is it reversible?)