1. States (Phases) of Matter

2. Particle Movement
All particles in a substance are in constant motion.

3. Solids Substances with definite shape and volume
Molecules are packed very close together
Molecules vibrate slowly in place
Highly organized
Usually have the highest density of the 3 states

4. Liquids
Substances with definite volume but no definite shape (take the shape of their container)
Molecules are moderately spaced
Molecules move slowly around each other
Not highly organized

5. Gases
Substances with no definite volume and no definite shape (unless contained)
Molecules are extremely far apart
Molecules move very quickly around each other (up to speeds of 500 m/s)
Not at all organized
Least dense of the 3 states of matter

6. Solid, Liquid, Gas

7. Physical Properties
A characteristic of matter that can be observed or measured without changing the identity of the matter
A physical change alters the physical properties of matter, but does not change the identity of the matter
What are some physical properties?
Volume, mass, density, hardness, color, texture