1. Bell-Work October 1  A physical property is a characteristic that we measure WITHOUT CHANGING THE SUBSTANCE.  What do you think a Physical Change is?  Give an example of a Physical Change.

2. Homework Check  Gas & Liquid  Liquid & Solid  Solid, Liquid, & Gas  Gas  Liquid  Solid

4. Modeling Activity  If you eat them, you will get a zero!  You can eat the treats at the END of the activity  Follow instructions on your handout  Have Ms. Pahls check your work before consuming it!

5. Physical Changes  Physical Changes are changes that take place where the substance present doesn’t change.  Chop  Cut  Melt  Freeze  Boil  Condense

6. Phase Changes  All phase changes are physical changes  The chemical substance does not change  Only the behavior of the particles changes.

7. 4 Phase Changes  Boil  Freeze  Melt  Condense

8. TPS: Which are gaining energy? Which are losing?  Boil  Freeze  Melt  Condense

9. Gaining Energy  Melting (Solid to a Liquid)  Boiling (Liquid to a Gas)

10. Losing Energy  Freezing (Liquid to a Solid)  Condensing (Gas to a Liquid)

11. 4 Phase Changes  Boil  Freeze  Melt  Condense

12. Your Task of the Day  Groups will be assigned.  You will have 10 minutes to organize your group.  After 10 minutes, your group will perform your skit of your phase change for the class.  The class will have to guess what your phase change was on their card.

13. Closure:  On your card: write a summary of each skit indicating how you knew it was the phase change you decided it was.