Physical vs Chemical Changes

Physical vs Chemical Change

Physical Change
-Involves changing shape or state of matter
-e.g. crushing, tearing etc.
-NO NEW SUBSTANCES ARE FORMED
-e.g. boiling water, cutting wood,smashing cars etc.
http://www.youtube.com/watch?v=w5Y452eiHC8

Phase Changes
 
 Chemical Change
-NEW SUBSTANCES ARE FORMED
-Properties of matter change
-Conductivity, acidity, colour etc.
-e.g. Iron rusting, burning wood.

http://www.youtube.com/watch?v=I8aA7SjYsCA&feature=related

Physical and Chemical Change Video:
http://www.youtube.com/watch?v=5yjEDihEuZI

-Stanley