1. States of Matter

2. There are Four States of Matter
Solid
Liquid
Gas
Plasma

3. Solids Particles are very close together
Have orderly, fixed arrangements
Fixed volumes due to fixed positions
Particles can only vibrate in position

4. Liquids More random arrangement of particles than solids.
Particles are loosely held together by attractive forces between particles, but can move past one another.
Result: Liquids can flow into any shape, but have a definite volume

5. Attractive forces between liquid particles may result in:
Cohesion
Attraction for each other
Adhesion
Attraction to other materials
Capillary Action
Ability to “climb” due to cohesion and adhesion
Surface Tension
Force that act on the surface of a liquid and that tends to minimize the area of the surface

6. Gas Essentially independent particles.
Large space between particles result in little to no attraction between particles.
Result: Gases can flow into any shape, and have no definite volume

7. Plasma Supercritical fluid
Occurs at very high temperatures and very high pressures
Has properties of both the liquid phase and the gas phase

8. Changing States Condensation Deposition Sublimation Evaporation
Melting
Freezing