Big Ideas about Phase Change
Phase changes happen... <ul><ul><li>Between the three states of matter: </li></ul></ul><ul><ul><ul><li>Solid, Liquid and G...
The key to starting a phase change.... <ul><ul><li>HEAT! </li></ul></ul><ul><ul><li>More Heat = More Kinetic Energy </li><...
Particles and Kinetic Energy <ul><li>When particles have more kinetic energy: </li></ul><ul><ul><li>more speed </li></ul><...
Let's Compare Phase Changes <ul><li>Melting - Solid to a Liquid </li></ul><ul><ul><li>Caused by heat </li></ul></ul><ul><u...
Melting &  Evaporation Caused by heat---
Condensation     &     Freezing   Caused by cooling & contracting
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Big Ideas about Phase Change

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Notes about Phase Changes - evaporation, condensation, freezing and melting

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Big Ideas about Phase Change

  1. 1. Big Ideas about Phase Change
  2. 2. Phase changes happen... <ul><ul><li>Between the three states of matter: </li></ul></ul><ul><ul><ul><li>Solid, Liquid and Gas </li></ul></ul></ul><ul><ul><li>4 Types of Phase Changes: </li></ul></ul><ul><ul><ul><li>Melting </li></ul></ul></ul><ul><ul><ul><li>Freezing </li></ul></ul></ul><ul><ul><ul><li>Evaporation </li></ul></ul></ul><ul><ul><ul><li>Condensation </li></ul></ul></ul>
  3. 3. The key to starting a phase change.... <ul><ul><li>HEAT! </li></ul></ul><ul><ul><li>More Heat = More Kinetic Energy </li></ul></ul><ul><ul><li>More Kinetic Energy = More Particle Movement </li></ul></ul>
  4. 4. Particles and Kinetic Energy <ul><li>When particles have more kinetic energy: </li></ul><ul><ul><li>more speed </li></ul></ul><ul><ul><li>hit other particles harder </li></ul></ul><ul><ul><li>hit other particles more often </li></ul></ul><ul><ul><li>Expand </li></ul></ul><ul><li>When particles have less kinetic energy:      </li></ul><ul><ul><li>  less speed </li></ul></ul><ul><ul><li>hit other particles less and not as hard </li></ul></ul><ul><ul><li>Contract </li></ul></ul>
  5. 5. Let's Compare Phase Changes <ul><li>Melting - Solid to a Liquid </li></ul><ul><ul><li>Caused by heat </li></ul></ul><ul><ul><li>heat = kinetic energy </li></ul></ul><ul><li>  </li></ul><ul><li>  </li></ul><ul><li>  </li></ul><ul><li>Evaporation- Liquid to a Gas </li></ul><ul><ul><li>Caused by heat </li></ul></ul><ul><ul><li>Heat = kinetic energy   </li></ul></ul><ul><li>Condensation -  </li></ul><ul><li>Liquid to a Gas </li></ul><ul><ul><li>Caused by cooling </li></ul></ul><ul><ul><li>Particles slow down & contract </li></ul></ul><ul><li>  </li></ul><ul><li>Freezing - Liquid to a Solid </li></ul><ul><ul><li>Caused by cooling </li></ul></ul><ul><ul><li>Particles slow down & contract   </li></ul></ul>
  6. 6. Melting & Evaporation Caused by heat---
  7. 7. Condensation    &     Freezing   Caused by cooling & contracting
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