The document discusses the particle model of matter (PMOM), which states that all matter is made up of tiny particles that are in constant motion. The PMOM explains that there are three main states of matter - solid, liquid, and gas - which differ based on how close or far apart the particles are and how they behave. Solids have particles very close together with a definite shape and volume, liquids have particles loosely attached that take the shape of their container but have a definite volume, and gases have particles not connected that fill their container without a definite shape or volume.

1. Particle Model of
Matter (PMOM)

2. What is matter?
• Matter: The stuff that makes up the universe that is
not energy
• Matter:
1. Has mass
2. Takes up space

3. States of Matter
States of Matter: distinct forms in which matter can
exist.
Bose-Einstein
Condensate
5

4. States of Matter
To move between states the matter must gain or lose
heat energy
Bose-Einstein
Condensate
5

5. The Particle Model of Matter (PMOM)
1. All matter is made of tiny particles
2. Particles are in constant motion
3. Adding heat to matter makes the particles move faster
4. There are attractive & repulsive forces between particles
5. There are spaces between the particles
6. (Different matter is made of different particles)

7. Solid
Solid:
• Particles are very close together
• Definite shape and volume
(Volume: the amount of space the matter occupies)

8. Liquid
Liquid:
• Particles are loosely attached to each other
• Take the shape of its container
• Has definite volume

9. Gas
Gas:
• Particles are not connected
• Has no definite shape
• Has no definite volume

10. Solid Liquid Gas
Motion of
Particles
Space between
particles
Behaviour in a
container
LOW Medium HIGH
Not affected
by the
container
Takes shape
of the
container
Fills the
container