1. Warm UP: On a clean sheet in your spiral
What state of matter would you be classified as? And Why?

2. Overview Finish Bill Nye – Matter Video and Questions
State of Matter Notes
We know everything can be classified as a Solid, Liquid, or a gas
We know Matter is not created or destroyed (Law of Conservation) and
Now we want to know how or what CAUSES phase changes!
How do solids change to liquid, liquid to gas, etc
Ice Melting Lab

3. Substances can be classified as Solids, Liquids, Plasma or gases.
States of Matter
Substances can be classified as Solids, Liquids, Plasma or gases.

4. States of Matter
Solid!!

6. Solids:
Definite Volume
Definite Shape

7. Because the particles in a solid are packed tightly and are in a fixed position, a solid has a definite shape and volume!!

8. Does the matter in solids move???

9. Yes, Solids do vibrate yet not enough to move around

10. States of Matter
LIQUID

12. LIQUID
NO definite shape - definite volume

13. Does the matter in liquids move???

14. Yes, the atoms move and slide over one another.

15. States of Matter
GAS

17. GAS
NO definite shape NO definite volume

18. Does the matter in gas move???

19. Yes, the atoms are zooming all over the room very, very quickly constantly colliding with one another.

20. States of Matter
PLASMA

21. PLASMA Highest energy state of matter
States of Matter
PLASMA
Highest energy state of matter
Electrons stripped away, nuclei packed together

22. Northern lights - At the center of our solar system lies the sun, the yellow star that sustains life on our planet. The sun's many magnetic fields distort and twist as our parent star rotates on its axis. When these fields become knotted together, they burst and create so-called sunspots. Usually, these sunspots occur in pairs; the largest can be several times the size of Earth's diameter. 

23. Kinetic (MOTION) Theory
Explains HOW particles in matter behave
All matter is composed of particles
Particles are in constant, random motion
Particles collide with each other and walls of their container

24. The state matter is in depends on the its kinetic energy or temperature!
Temperature – is related to the average amount of kinetic (motion) energy of an objects atoms or molecules

25. Example of Kinetic Energy: Thermal expansion
refers to the increase in the size of a substance when the temperature increases (expansion) & a decrease in size when it temperature decreases(contracts)
Solid at a colder temp Solid at a warmer temp

26. Kinetic Theory Example Cont.
Phase Changes
Liquid and Gas
Evaporation
Condensation
Gas and Solid
Deposition
Sublimation
Solid and Liquid
Melting
Freezing

27. Applying Kinetic (MOTION) theory
ICE Lab: Boiling Point
And Melting Point
Hypothesis: If I increase the amount of energy (temperature), then the state of matter will change, because increased kinetic theory ………
Finish the hypothesis

28. Materials Materials: Hot plate Wooden/glass stirring rod Beaker Ice
Thermometer (Celsius)
Stopwatch/Timer

29. Procedure Fill beaker of ice. Place the beaker on a off hotplate.
Place thermometer in ice so it’s not touching bottom of beaker.
When thermometer temp. stops dropping, record the temperature and start the time.
Every minute record the temp. occasionally stir ice/water carefully.
Lab is complete when the boiling water temp. does not change for 5 consecutive measurements.
DO NOT CRANK THE TEMP!

30. Complete the lab and write a proper conclusion!
Remember to use your lab format paper in the back of your spiral.
Your conclusion is worth 50% of the lab, so make sure it is well written.

31. Will an ice cube melt faster in fresh water or in salt water?
Imagine that it is a snowy winter day and the highway department is working hard to clear the roads.
There have been few “snow days” this year and students find themselves wishing the highway guys were not quite so efficient at clearing the highways so that they can have more snow days!
Will an ice cube melt faster in fresh water or in salt water?
Given the unexpected outcome of this experiment, someone will ask why we use salt to
melt ice on sidewalks. Depending on the time available you can discuss that solutions
have lower freezing points than pure water and that salt is only applied to ice if the
temperature is fairly close to the freezing point of water or slightly above it. The salt
dissolves in the liquid, which makes it more difficult to freeze. At temperatures close to
freezing the pressure of traffic rolling over the pavement raises the
surface temperature
just enough to melt the ice and the salt dissolving into it keeps it from refreezing. The ice
skater’s blade concentrates the pressure of his body weight so that he glides on a thin
layer of liquid water. If the temperature is already very cold, the highway department
spreads cinders or sand to improve traction. Salt is not very effective at low temperatures.
Come up with a hypothesis