1. Describing Matter

2. Physical Properties of Matter
All substances or objects have physical properties.
Physical properties are those characteristics of an object or substance that can be observed without changing it into something else.

3. Physical Properties of Matter
Examples of physical properties:
color
mass
volume
length
smell
temperature
boiling point

4. Physical Properties of Matter
Name the physical properties of this object:

5. Physical Change
A physical change is a change in size, shape, or state of an object.
No new substances are formed.
Physical changes can be reversed.

6. Physical Change Examples of physical change: Freezing/melting of water
Tearing of paper
Smashing of a soda can
Chopping of wood

7. Chemical Change
A chemical change results in the formation of a new substance with new properties
Chemical changes are NOT reversible.

8. Chemical Change Look for signs such as: color change
bubbling and fizzing
light production
smoke
presence of heat.

9. Examples of chemical change:
Burning paper/wood
Mixing baking soda and vinegar
Digesting food
Baking cookies

10. Chemical Properties of Matter
All substances or objects also have chemical properties.
Chemical properties describe how a substance interacts or fails to interact with another.

11. Chemical Properties of Matter
Examples of chemical properties:
Flammability of gasoline
Rusting of iron exposed to water
Inability of neon gas to react with any other element