1. Intentions for success:
We will be successful when we define and describe the states of matter
Aug. 29, 2018
Vocab: Kinetic Molecular theory Matter Properties
Warm up: What is Matter? List some distinguishing properties that can be used to describe matter. How do we classify matter?

2. Ch. 8 - Solids, Liquids, & Gases
MATTER
Ch. 8 - Solids, Liquids, & Gases
I. States of Matter (p.68-74)
Kinetic Molecular Theory
Four States of Matter
Thermal Expansion

3. A. Kinetic Molecular Theory
KMT
Tiny, constantly moving particles make up all matter.
The kinetic energy (motion) of these particles increases as temperature increases.
explained

4. B. Four States of Matter Solids
low KE - particles vibrate but can’t move around
definite shape & volume
crystalline - repeating geometric pattern
amorphous - no pattern (e.g. glass, wax)

5. B. Four States of Matter Liquids
higher KE - particles can move around but are still close together
indefinite shape
definite volume

6. B. Four States of Matter Gases
high KE - particles can separate and move throughout container
indefinite shape & volume

7. B. Four States of Matter Plasma
very high KE - particles collide with enough energy to break into charged particles (+/-)
gas-like, indefinite shape & volume
stars, fluorescent light bulbs, TV tubes

8. C. Thermal Expansion
Most matter expands when heated & contracts when cooled.
 Temp causes  KE. Particles collide with more force & spread out.
EX: thermostats (bimetallic strip)
Complete 1st page handout

9. Review questions (answer in notes)
How are shape and volume used to classify matter?
What does the kinetic theory say about atoms?
Use the Kinetic theory and attractive forces to explain why a liquid has a definite volume but variable shape