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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 1-4 2. Page 14 3. Finish Lab
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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
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4 MINUTES REMAINING…
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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
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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
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2 MINUTES REMAINING…
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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
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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
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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
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BELL- RINGER TIME IS UP!
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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
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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 1-4 2. Finish Lab
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Week 4 Weekly Agenda Monday – Density Tuesday – Density Lab Wednesday – Phases of Matter Thursday – Phase Changes Friday – Quiz 3
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Part 2 Metal Rods ColorMetal Density (g/mL) yellowcopper 8.96 greyaluminum 2.70
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Cornell Notes: Please take out your notebook and properly set up your paper. Topic: Phase Changes Date: 10/10/12
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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.
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Cornell Notes: Please take out your notebook and properly set up your paper. Topic: Phase Changes Date: 10/10/12
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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.
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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
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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)
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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
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Phase Change Diagram LIQUID SOLID GAS freezing melting condensation boiling sublimation deposition
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