1. Solid
Definite shape and definite
volume
Little kinetic energy in the
molecules
Example: aluminum

2. Liquid
Definite volume but no
definite shape
More kinetic energy in the
molecules
Example: water

3. Gas
No definite shape no
definite volume
Most kinetic energy of the
molecules
Example: air

4. Plasma
A soup of positive
nuclei surrounded by
free flowing
electrons
Example: Lightning

5. Physical Change
Change in matter that
does not produce new
products
May look different, but it’s
not a new substance
“Easily” reversed

6. Physical Change
Chemical properties are
not changed
No energy given or
taken unless there is a
change of state

7. Change of State
Molecules gain or lose kinetic
energy
Melting/freezing,
evaporating/condensation

8. Change of State
Sublimation
Going from a solid to a
gas
Skips the liquid state

9. Chemical Change
Matter changes from one
kind of material to another
The atoms do not change
They rearrange themselves
Not “easily” reversed

10. Chemical Change
The new substances
have new properties
Chemical change takes
place during a chemical
reaction

11. Energy
Always a part of a
chemical change
Given or taken