1. WARM UP
Compare and contrast the properties and forces present in solids, liquids, and gases.
Explain, in your own words, how the states of matter change. Use water as an example.

2. The Big Bang Theory

3. Phase Changes

4. Kinetic-Molecular Theory
Molecules are in constant motion
Higher temperature increases motion

5. Kinetic-Molecular Theory
Increased motion can break IMFs
Changes phase

6. Kinetic-Molecular Theory
Temperature increase stops at points of phase change
All heat used to break forces, not move particles faster

7. Phase Changes Liquid Solid (Melting and Freezing) Melting point
Particles break/make crystals

8. Phase Changes Liquid Gas (Vaporization and Condensation) Boiling point
Particles escape from/enter liquid

9. Phase Changes
Solid Gas
Sublimation (to gas)
Deposition (to solid)

10. IMFs and Phases Stronger forces require higher energy to break
Raises m.p. and b.p.

11. External Conditions and Phases
b.p. is dependent on mass/gravity
Particles must escape upward
Greater mass requires more energy/heat to vaporize

12. WRAP UP
Draw a phase change graph for water, showing the transition from ice to liquid to steam.
Explain why the phase change graph shows flat areas.

13. WARM UP
Describe the relationship between the mass of a particle and the boiling point of its liquid.

14. WRAP UP
Describe the link between kinetic-molecular theory, intermolecular forces, and phase changes.

15. WARM UP
“If you do what you’ve always done, you’ll get what you’ve always gotten.” – Tony Robbins
What does this mean to you?
How can you apply this to school?