2. Change of State
A change of state is a physical property because it does not change the chemical identity of the substance. It is a physical change of a substance from one state to another.

3. Common States of Matter
Common states of matter are solids, liquids, gases, and plasma.

4. Solids Solids have:- Definite volume Definite shape
Particles or molecules are packed closely in a fixed position
Strong attractive forces between them.
Vibrate, but do not move

5. Liquids Liquids have:- Definite volume Indefinite shape
Particles are able to move past one another
Particles move faster than those of a solid

6. Gases Gases have:- No definite volume No definite shape
All bonds are broken
Particles move freely and quickly
No attractive force between them

7. Plasma Plasma, an ionized gas has:-
Very high temperatures (1,000 to 1,000,000 oC)
Lose most of their electrons
Found in fluorescent bulbs

8. Examples of Plasma Flames Northern Lights Lightning
The sun is an example of a star in the plasma state

9. Energy and Changes in Matter
Energy in the form of heat or light is always needed for any type of change to take place

10. The Law of Conservation of Energy
In a chemical change energy is neither created or destroyed, it is simply rearranged to form a new product.

11. Stop and Think
Use the left side of your notebook to create a chart of the different states of matter. Include information about the shape, volume, particle movement, and attractive forces between the particles. Include a picture of the molecular structure of each phase.