Oct. 10th AGENDA: 1 – Bell Ringer 2 – Density Lab 3 – Cornell Notes: Phase Changes 4 – Practice Problems Today’s Goal: Students will be able to contrast.

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Presentation transcript:

Oct. 10th AGENDA: 1 – Bell Ringer 2 – Density Lab 3 – Cornell Notes: Phase Changes 4 – Practice Problems Today’s Goal: Students will be able to contrast the phase changes of matter. Homework 1. Page 13 questions Page Finish Lab

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical change? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

4 MINUTES REMAINING…

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical change? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

3 MINUTES REMAINING…

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical change? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

2 MINUTES REMAINING…

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical change? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

1minute Remaining…

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical change? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

30 Seconds Remaining…

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical change? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

BELL- RINGER TIME IS UP!

Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: 1.What is a physical property? 2.What is more dense, a grape or a Styrofoam block? Homework: 1.Classroom materials out 2.Density HW (if not turned in yet) 3.Density Lab Conclusion Questions

Oct. 10th AGENDA: 1 – Bell Ringer 2 – Density Lab 3 – Cornell Notes: Phase Changes 4 – Practice Problems Today’s Goal: Students will be able to contrast the phase changes of matter. Homework 1. Page 13 questions Finish Lab

Week 4 Weekly Agenda Monday – Density Tuesday – Density Lab Wednesday – Phases of Matter Thursday – Phase Changes Friday – Quiz 3

Part 2 Metal Rods ColorMetal Density (g/mL) yellowcopper 8.96 greyaluminum 2.70

Cornell Notes: Please take out your notebook and properly set up your paper. Topic: Phase Changes Date: 10/10/12

CHAMPS for Notes C – Conversation – No Talking – Take notes H – Help – RAISE HAND for questions A – Activity – Cornell Notes: Phase Changes M – Materials and Movement – Pen/Pencil, Notebook or Paper P – Participation – Complete your notes S – Success – Write three questions and summary about notes. Answer HW questions.

Cornell Notes: Please take out your notebook and properly set up your paper. Topic: Phase Changes Date: 10/10/12

Physical vs. Chemical Changes  Phase changes are all classified as physical changes because in chemical changes an entirely new substance is produced.  In chemical changes, the compounds rearrange to form new compounds.  In physical changes the compounds don’t change at the molecular level.

Energy (usually in the form of heat)  Energy is added or taken away to create phase changes.  When energy is added, particles move further apart.  Solid  Liquid  Gas  When energy is taken away, particles move closer together.  Gas  Liquid  Solid

Phase Changes  Melting = solid  liquid  Freezing = liquid  solid  Boiling / Vaporization / Evaporation = liquid  gas  Condensation = gas  liquid  Sublimation = solid  gas (ex: dry ice)  Deposition = gas  solid (very rare)

Temperature and Pressure Points of change  Melting Point = T & P when solid  liquid  Freezing Point = T & P when liquid  solid  Boiling Point = T & P when liquid  gas  Condensation Point = T & P when gas  liquid

Phase Change Diagram LIQUID SOLID GAS freezing melting condensation boiling sublimation deposition