1. Physical
&
Chemical
Changes

2. Physical Properties: Properties of matter that can be
measured or observed without
changing what the substance is.
Examples:
Density, Color, Texture,
Melting point, boiling point, Luster,
Malleability, Ductility

3. Physical Changes
Physical Change: when an object changes a physical property of matter without any change in chemical properties
A change in size, shape, texture, or state.
The object still is the same thing.

4. Examples of Physical Changes
Ripped Paper
Boiling Water
Cutting Hair
Broken Brick

5. Chemical Properties: properties that describe the
ability of a substance to undergo
a specific chemical change
Examples:
Reactivity, Flammability,
Combustion, Oxidation

6. Chemical Changes
Chemical Change : matter changes into an entirely new substance with different properties …Something new is created.

7. Keys to Identifying a Chemical Change
Color change
Temperature change
Formation of a gas, bubbles, or odor.
Formation of a precipitate.

8. Examples of Chemical Changes
Fireworks exploding
An apple rotting
Baked cookies