10.29 D4 Phase Changes Ktm Demo

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Explaining the linked concepts of phase changes and kinetic theory of matter.

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10.29 D4 Phase Changes Ktm Demo

  1. 1. Day 4: October 29/30 <ul><li>Objective: SWBAT link kinetic theory of matter to changes of state. </li></ul><ul><li>Homework: finish vocab flap-book; page 39 summary </li></ul><ul><li>Warm up: How long would it take to count 1 billion one-dollar bills? </li></ul>
  2. 2. Agenda <ul><li>Return quizzes </li></ul><ul><li>Share homework ideas </li></ul><ul><li>Demonstrations - evidence of KTM </li></ul><ul><li>Phase changes </li></ul><ul><li>Phase change independent practice instructions </li></ul><ul><li>Phase change IP work-time </li></ul>
  3. 3. Glue in your grades <ul><li>Notebook check on second to last page </li></ul><ul><ul><li>Flap door next to other notebook check </li></ul></ul><ul><li>Quiz onto page 33 </li></ul><ul><ul><li>Half hamburger fold </li></ul></ul><ul><ul><li>Glue on line printed on the back! </li></ul></ul>
  4. 4. Demonstrations <ul><li>What is plasma? </li></ul><ul><ul><li>Lightening </li></ul></ul><ul><ul><li>Plasma novelty light </li></ul></ul><ul><li>Hear the KTM </li></ul><ul><ul><li>Bouncy balls in the water jug </li></ul></ul><ul><ul><li>The more energy, the more the molecules bounces around </li></ul></ul><ul><ul><li>Never silent because they’re always moving </li></ul></ul><ul><li>Diffusion </li></ul><ul><ul><li>food coloring in hot water v. cold water </li></ul></ul><ul><li>Expansion </li></ul><ul><ul><li>Gas – balloon in flask </li></ul></ul><ul><ul><li>Solid – ball through ring </li></ul></ul><ul><ul><li>Solids – bi-metallic strip bending </li></ul></ul>
  5. 5. Prior Knowledge <ul><li>What are phase changes? </li></ul><ul><li>What are phase changes that we know? </li></ul>
  6. 6. Onto the notes <ul><li>Matter changes from one state to another as it gains more energy – usually in the form of heat </li></ul><ul><li>What happens to the particles in something when there is more energy? </li></ul>
  7. 7. The phase change triangle <ul><li>Skip four lines from bottom of last thing written on page 39 </li></ul><ul><li>Measure 3 cm to right of black line on page. Mark point. </li></ul><ul><li>Draw a vertical line 5 cm long from marked point (8 lines on the paper) </li></ul><ul><li>Draw the sides of the triangle 5 cm long. They will touch at the printed line on the paper if drawn right </li></ul>
  8. 8. The phase change triangle <ul><li>Label this diagram “Illustrating how changes in energy affect the state of matter” </li></ul><ul><li>Make a legend to the right side of the triangle. Two colors, one “hot” and one “cool” </li></ul><ul><ul><li> Endothermic </li></ul></ul><ul><ul><li> Exothermic </li></ul></ul>
  9. 9. Gas Liquid Solid Endothermic Exothermic Low Energy High Energy Melting Freezing Sublimation Evaporation Condensation
  10. 10. Phase change vocab flaps <ul><li>This will be pasted on bottom of 38 </li></ul><ul><li>Take sheet of notebook paper </li></ul><ul><li>Fold in half hot dog style </li></ul><ul><li>Fold hamburger style. </li></ul><ul><li>Repeat step 4. </li></ul><ul><li>Fold hot dog style. </li></ul><ul><li>On one side, cut each fold line halfway to make flaps down the page </li></ul>WORD DEFINITION
  11. 11. Phase change flipper <ul><li>Phase Change </li></ul><ul><li>Endothermic </li></ul><ul><li>Exothermic </li></ul><ul><li>Evaporation </li></ul><ul><li>Condensation </li></ul><ul><li>Melting </li></ul><ul><li>Freezing </li></ul><ul><li>Sublimation </li></ul><ul><li>Make your own definitions using the diagram and info presented in class </li></ul><ul><li>Example:: Melting –energy is added to the substance as it changes from solid to liquid </li></ul>

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