Power Point Presentation

2. CHANGES

3. CHEMICAL CHANGE
&
PHYSICAL CHANGE

4. CHEMICAL CHANGE
 The chemical changes is a permanent
change
 New material are formed during chemical
change

5. Rusting of iron
Explosion of crackers
Burning of wood

6. PHYSICAL CHANGE
 It is temporary change.
 No new molecules are formed.
 Only a change in the arrangement of
molecules occurs.

7. EXAMPLE FOR PHYSICAL
CHANGE
 Melting of wax
 Cutting of wood
 Conversion of water to water
vapor

8. Thank You