Changing materials involves altering their physical and chemical properties. Physical changes affect appearance through methods like bending or cutting, while chemical changes alter composition via processes such as burning or rusting. Both types of changes can involve phase transitions like melting or freezing.

1. Changing materials-Process of altering or modifying the physical and chemical properties
of a material.

2. Changing Materials
Physical
Change
Change in appearance Such as
shape size and other physical
characteristics
Ways: Bending ,
Cutting, tearing ,
Shattering, Grinding
Phase changes : Melting,
Freezing, Boling , condensing ,
depositing
Chemical Change
Change in chemical
composition of substance
Ways: Rotting,
Burning, Cooking,
Rusting
Phase changes Odoring ,
Color change

3. Chemical
Physical