Physcal & Chemical Changes powerpoint

1. Chemical and Physical Changes Joseph Bailey 9/17/09 2ndperiod

2. Physical and Chemical Changes A physical change is the chemical properties of a substance stay the same, but the state, shape, and size of the substance A chemical change is any new substance formed with different chemical properties than the original substance Chemical change Physical change

3. Chemical Change A tree burning is a form of chemical change. The reason why is because when the tree burns it is turned into carbon and ash

4. Physical Change Tearing up a sheet of paper is a form of physical change. The reason why is because you are not change the substance, but you are changing the size and the shape of the paper so it is physical change.

5. References http://steam.cs.ohiou.edu/~mleitch/ChangeLab.swf