1. States of Matter (aka Phases of Matter)
December 2014

2. States of matter/phases of matter
State of matter is the physical form in which a substance can exist

3. Kinetic molecular theory (kmt)
This describes how the particles move in all states of matter and also how they move when a phase change is completed.

4. SOLID *Definite SHAPE *Definite VOLUME
Atoms are close together, particles are moving but not fast enough to overcome the attraction between the molecules; particles are vibrating in place

5. lIQUID *NO definite SHAPE, takes the shape of its container
*Definite VOLUME
Particles are moving fast enough to overcome some of the attraction between them. The particles slide past each other

6. GAS *NO definite SHAPE, takes the shape container
*NO definite VOLUME, fills volume of container
Particles are moving quickly so they can break away completely from one another. The amount of empty space between gas particles can change

7. Solid-Liquid-Gas SOLID LIQUID GAS *Definite SHAPE *Definite VOLUME
Particles are tightly packed and move in place
*NO definite SHAPE, takes the shape of its container
Particles move a little more freely
*NO definite SHAPE, takes the shape container
*NO definite VOLUME, fills volume of container
Particles move fast and furiously
ENERGY is REMOVED; particles slow down and move closer
ENERGY is ADDED; particles speed up and move farther apart
* Key defining characteristics for you to remember

8. Change of State:
Change of a substance from one physical form to another
Add or remove energy
GAS
SOLID
LIQUID

9. Phase change summary PHASE CHANGE Goes from: Particles Energy is:
FREEZING
Liquid to solid
Slow down, move close together
Removed
2. MELTING
Solid to liquid
Speed up, move further apart
Added
3. EVAPORATION
Liquid to gas
4. CONDENSATION
Gas to liquid
5. SUBLIMATION
Solid to gas
added

10. Phase Change graph
As the temperature of a substance changes, the speed of the particles also changes.
But the temperature of a substance does not change until the change of state is complete.

11. PHASES OF MATTER POSTER
Use textbook Chapter 3 (pages and 74-78) to help you
The points you need to include are:
The three states or matter and how particle movement explains each state
A picture example of each that is NOT ICE, WATER, or WATER VAPOR
The phase changes along with (1) what states they occur between, (2) what happens to the particles and (3) whether the particle motion is due to energy added or taken away.
Key words to include: Solid, liquid, gas, freezing, melting, evaporation, condensation, sublimation
Your poster should be neat, easy to read, colorful and understandable. It should also be a poster, meaning that it SHOULD NOT be a piece of paper with only writing on it.