1. October 26, 3015 1) List the four state/phases of matter
2) Draw a diagram of the three most common phases.

2. Today Finish Lab Stations Notes: Phase Changes
Homework: Homework Packet #2 part 1&2
Reminder: Quiz tomorrow over Physical/ Chemical Changes and Matter & Mixtures

3. After today… (our goals)
You should be able to describe 3 main states of matter
You should be able to explain the difference between temperature and heat.

4. What is matter? What is matter made of?
The stuff that makes up all things
What is matter made of?
Atoms, molecules, particles that are always moving

5. Intermolecular Forces
Inter- between or among
Molecular- refers to molecules (which are the building blocks of all things!)
Intermolecular forces = forces between molecules

6. States or Phases of Matter
Solid
Energy of Molecules: Little, not a lot
Intermolecular Forces: STRONG! (keep it together!)
Volume: Definite (cannot be changed)
Shape: Definite (cannot be changed)

7. States or Phases of Matter
Liquid
Energy of Molecules: Medium, more than solid
Intermolecular Forces: Not as strong
Volume: Definite (cannot be changed)
Shape: Not definite (can be changed)

8. States or Phases of Matter
Gas
Energy of Molecules: Lots!
Intermolecular Forces: Weak (don’t really need to be held together)
Volume: Not definite (can be changed)
Shape: Not definite (can be changed)

9. States Of Matter
What do they look like on a molecular level?

10. States or Phases of Matter
Plasma
We don’t know much about it
Found in space
NOT the same as plasma in TVs

11. Q: How does matter go from one state to another?
Solid  Liquid
Energy: Added
Called: Melting
Example:

12. Q: How does matter go from one state to another?
Liquid  Gas
Energy: Added
Called: Vaporization (boiling or evaporation)
Example:

13. Q: How does matter go from one state to another?
Liquid  Solid
Energy: Removed
Called: Freezing
Example:

14. Q: How does matter go from one state to another?
Gas  Liquid
Energy: Removed
Called: Condensation
Example:

15. Q: How does matter go from one state to another?
Solid  Gas (no stop at liquid)
Energy: Added
Called: Sublimation
Example:

16. Q: How does matter go from one state to another?
Gas  Solid (no stop at liquid)
Energy: removed
Called: deposition
Example:

17. Homework
Homework Packet #2 Parts 1&2
Finish Lab Questions