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Sept. 20, 2012 AGENDA: 1 – Bell Ringer 2 – Review HW 3 – Cornell Notes: Phase Changes 4 – Demo 5 – Start Homework Today’s Goal: Students will be able to contrast the phase changes of matter. Homework 1. Phase Changes Practice Problems 2. Come after school TODAY to make up “last” Friday’s QUIZ 1 if you were absent that day (9/7/2012).
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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4 MINUTES REMAINING…
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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3 MINUTES REMAINING…
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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2 MINUTES REMAINING…
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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1minute Remaining…
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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30 Seconds Remaining…
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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BELL- RINGER TIME IS UP!
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Sept. 20, 2012 AGENDA: 1 – Bell Ringer 2 – Review HW 3 – Cornell Notes: Phase Changes 4 – Demo 5 – Start Homework Today’s Goal: Students will be able to contrast the phase changes of matter. Homework 1. Phase Changes Practice Problems 2. Come after school TODAY to make up “last” Friday’s QUIZ 1 if you were absent that day (9/7/2012).
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Thursday, Sept. 20 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: The particles in which state of matter act most like each of the following: 1.Kindergarteners on a playground 2.Senior citizens in a lunch line 3.Harlan students in the hall between classes
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Week 2 Weekly Agenda Monday 9/17 – No School Tuesday 9/18 – No School Wednesday 9/19 – Review + Cornell Notes: States of Matter Thursday 9/20 – Cornell Notes: Phase Changes Friday 9/21 – Review and QUIZ 2
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CHAMPS for Sept. 20, 2012 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: 9/20/2012
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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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