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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 Page 13 questions 1-4 Page 14 Finish Lab. Wednesday, Oct. 10. Objective :
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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 • Page 13 questions 1-4 • Page 14 • Finish Lab
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical change? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • Density Lab Conclusion Questions
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical change? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • Density Lab Conclusion Questions
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical change? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • Density Lab Conclusion Questions
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical change? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • Density Lab Conclusion Questions
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical change? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • Density Lab Conclusion Questions
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical change? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • Density Lab Conclusion Questions
Wednesday, Oct. 10 Objective: Students will be able to contrast the phase changes of matter. Bell Ringer: • What is a physical property? • What is more dense, a grape or a Styrofoam block? Homework: • Classroom materials out • Density HW (if not turned in yet) • 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 • Page 13 questions 1-4 • 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 Color Metal Density (g/mL) yellow copper 8.96 grey aluminum 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 physicalchanges 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
LIQUID GAS SOLID Phase Change Diagram condensation freezing boiling melting deposition sublimation