1. States of Matter & Kinetic Molecular Theory

2. What do you already know?

3. Look Around The Room…. Take a moment look around the room!
Can you see things that are solid, liquid or gas?
Find some, then share with the person next to you.

4. What do you already know?

5. States of Matter Matter is anything that has mass and volume.
Volume is the amount of space taken up by an object/substance.
How do we measure volume?
Usually in mL or L.

6. States of Matter Cont’d
Mass is the amount of matter in an object/substance.
The more matter in an object, the more mass it has!
How do we measure mass?
Usually in g or kg.

7. States of Matter Cont’d.
There are 3 states of matter that we will be studying, solid, liquid and gas
Fixed mass
Fixed Volume
Fixed Shape
Solid
Liquid
Gas

8. States of Matter Cont’d.
There are 3 states of matter that we will be studying, solid, liquid and gas
Fixed mass
Fixed Volume
Fixed Shape
Solid
Yes
Liquid
Gas

9. States of Matter Cont’d.
There are 3 states of matter that we will be studying, solid, liquid and gas
Fixed mass
Fixed Volume
Fixed Shape
Solid
Yes
Liquid
Gas No

10. States of Matter Cont’d.
There are 3 states of matter that we will be studying, solid, liquid and gas
Fixed mass
Fixed Volume
Fixed Shape
Solid
Yes
Liquid No
Gas

11. The Particle Model of Matter
All matter is made of small particles that are too small to see.
There are spaces between the particles.
The amount of space varies depending upon the state.
The particles are always moving.
The particles are attracted to one another.

12. Kinetic Molecular Theory
The Kinetic Molecular Theory (KMT) explains what happens to matter when the kinetic energy of particles changes.
What is Kinetic energy?
Kinetic energy is the energy due to motion

13. Kinetic Molecular Theory
Particles are always moving, in gasses, liquids and even solids!
This means they have kinetic energy!!

14. The Kinetic Molecular Theory
All matter is made of very small particles.
There is empty space between particles.
Particles are constantly moving. The particles are colliding with each other and the walls of their container.
Energy makes particles move. The more energy the particles have, the faster they move and further apart they get

15. The Kinetic Molecular Theory
Liquid: Particles are farther apart and they can move by sliding past each other.
Solid: Particles are so tightly packed together they cannot move freely. They can only vibrate.
Gas: Particles are very far apart and move around quickly.