1. Review the difference between
Today’s Goal:
Review the difference between
Physical Change
and
Chemical Change

2. Stays the same object, you can reverse it back
Physical Change
Stays the same object, you can reverse it back

3. Physical Change Examples: Ice melting Ripping paper in half
Clouds forming
Sugar dissolving

4. Creates a new substance, you can’t reverse it back
Chemical Change
Creates a new substance, you can’t reverse it back

5. Chemical Change Examples: Burning a match Boiling an egg Rust forming
Digesting food

6. Physical Change or Chemical Change ? You decide..
Baking a cake
Chemical change
The melting wax on a candle
Physical change
Sawing wood into several pieces
Physical change
Burning the wick of a birthday candle
Chemical change

7. Physical Change or Chemical Change ? You decide..
Sawing a piece of wood
Physical change
Cutting your hair
Physical change
Bleaching your hair
Chemical change
Boiling water
Physical change