Tuesday, October 23rd AGENDA: 1 – Bell Ringer 2 – Phase Change Diagrams 3 – Exit Ticket Announcements 2.5 pts of extra credit for coming for tutoring after school (up to 5 times / week) Today’s Goal: Students will be able to read a phase change diagram. Homework 1. Phase Change Transitions (p. 6)

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

4 MINUTES REMAINING…

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

3 MINUTES REMAINING…

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

2 MINUTES REMAINING…

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

1minute Remaining…

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

30 Seconds Remaining…

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

BELL- RINGER TIME IS UP!

Tuesday, October 23rd Objective: Students will be able to read a phase change diagram. Bell Ringer (p. 13): 1.What is the phase change from liquid to solid? What about liquid to gas? 2.When something is melting, what phase(s) are present? Have your classroom materials out and packet open to page 3 for a stamp!

Tuesday, October 23rd AGENDA: 1 – Bell Ringer 2 – Phase Change Diagrams 3 – Exit Ticket Announcements 2.5 pts of extra credit for coming for tutoring after school (up to 5 times / week) Today’s Goal: Students will be able to read a phase change diagram. Homework 1. Phase Change Transitions (p. 6)

Shout Outs Period 1 – Dexter, Tahmera Period 2 – Anthony Period 3 – Ladonna, D’Angela

Homework Phase Change Transitions (p. 6)

Week 6 Weekly Agenda Monday 10/22 – Quiz 3 Review Tuesday 10/23 – Phase Change Diagrams Wednesday 10/24 – Metric System Thursday 10/25 – Metric System Lab Friday 10/26 – Quiz 5

CHAMPS for October 23rd C – Conversation – No talking unless directed H – Help – RAISE HAND for questions A – Activity – Take notes so you can understand phase change diagrams M – Materials and Movement – Pen/Pencil, Paper P – Participation – Write down notes, correct answers S – Success – Understand phase change diagrams!

Phase Change Diagrams (p. 4)

Phase Change Notes Temperature – A measure of how much energy something has. Pressure – How much a surface is being pushed on. Atmospheric Pressure – How much Earth’s atmosphere pushes down on us (set as 1 atm).

Phase Change Diagrams (p. 4) Solid

Phase Change Diagrams (p. 4) Liquid Solid

Phase Change Diagrams (p. 4) Liquid Solid Gas

Questions (p. 4) 1.Which section represents the solid phase? ________ 2.What section represents the liquid phase? ________ 3.What section represents the gas phase? ________

Questions (p. 4) 1.Which section represents the solid phase? A 2.What section represents the liquid phase? C 3. What section represents the gas phase? B

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point

Questions (p. 4) 4. What letter represents the triple point? In your own words, what is the definition of a triple point?

Questions (p. 4) 4. What letter represents the triple point? d In your own words, what is the definition of a triple point?

Questions (p. 4) 4. What letter represents the triple point? d In your own words, what is the definition of a triple point? The Temperature and Pressure where all 3 phases coexist.

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point Melting

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point Melting Boiling

Questions (p. 4) 5. What is this substance’s normal melting point, at 1 atmosphere of pressure? _________ 6. What is this substance’s normal boiling point, at 1 atmosphere of pressure? _________

Questions (p. 4) 5. What is this substance’s normal melting point, at 1 atmosphere of pressure? 60 C 6. What is this substance’s normal boiling point, at 1 atmosphere of pressure? 100 C

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point Melting Boiling

Questions (p. 4) 7. Above what temperature is it impossible to liquefy this substance, no matter what the pressure? _____ 8. At what temperature and pressure do all three phases coexist? ___________________

Questions (p. 4) 7. Above what temperature is it impossible to liquefy this substance, no matter what the pressure? 110 C 8. At what temperature and pressure do all three phases coexist? Triple Point; 45 C, 0.5 atm

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point Melting Boiling

Questions (p. 4) 9. At a constant temperature, what would you do to cause this substance to change from the liquid phase to the solid phase? 10 What does sublimation mean?

Questions (p. 4) 9. At a constant temperature, what would you do to cause this substance to change from the liquid phase to the solid phase? Increase Pressure; pushes molecules together 10 What does sublimation mean? Solid to gas transition; low Temperature, high Pressure

Phase Change Diagrams (p. 4) Liquid Solid Gas Triple Point Melting Boiling Critical Point

Phase Change Diagrams (p. 5)

Cornell Notes: Lab Review Time Phase Changes are flat because they occur at a constant temperature During a phase change you have a mix of the two phases. Kinetic Energy increases when Temperature increases Potential Energy increases during phase changes

Lab Post-Lab Questions: 1. What does the line look like on your graph when temperature is changing? 2. What does the line look like when temperature is not changing? 3.What does the first flat region represent? What does the second flat region represent?

Lab Post-Lab Questions: 1. What does the line look like on your graph when temperature is changing? Goes up 2. What does the line look like when temperature is not changing? Flat 3.What does the first flat region represent? What does the second flat region represent? Melting, Boiling

Lab 4. At times (flat regions of your graph), why does the temperature of a substance remain constant, even though energy is being added? 5. Label each segment of your graph, write which phase of matter is for each segment and for phase changes say what type of phase change is occurring (freezing, boiling, etc.) 6. During which phase were the water molecules the most free to move around? How could you tell? Can you relate this to kinetic energy?

Lab 4. At times (flat regions of your graph), why does the temperature of a substance remain constant, even though energy is being added? Phase Change; heat is being used to increase potential energy by spreading molecules apart 5. Label each segment of your graph, write which phase of matter is for each segment and for phase changes say what type of phase change is occurring (freezing, boiling, etc.) 6. During which phase were the water molecules the most free to move around? How could you tell? Can you relate this to kinetic energy? Gas, because they leave the beaker! High movement = high kinetic energy

Lab Solid Liquid Gas Melting Boiling

Exit Ticket 1. You have an atom with 3 protons and 5 neutrons. Write it in isotope notation. 2. Classify apple juice as an element, compound, homogenous, or heterogeneous mixture and explain why. 3. What do the flat lines on a phase change diagram mean? Is the kinetic or potential energy changing? Explain

Exit Ticket

Exit Ticket (p. 16) Draw a typical phase change diagram; label the axes and show: 1.Solid, Liquid, Gas 2.Triple Point 3.Melting Point & Boiling Point 4.Critical Point