Physics Weekly

Class Pages

Chapter 17: Change of Phase
Marymount High School
a journey into the physical world!

Physics Syllabus

Homework Chart

Judith S. de Nuño
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Daily Lunch in the Science Patio
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Chapter Objectives:

  • Explain why evaporation of water is a cooling process.
  • Explain why condensation is a warming process.
  • Explain why a person with wet skin feels chillier in dry air than in moist air at the same temperature.
  • Distinguish between evaporation and boiling and explain why food cooked in boiling water takes longer to cook at high altitudes.
  • Explain why water with substances dissolved in it freezes at a lower temperature than pure water.
  • Describe how something can boil and freeze at the same time.
  • Describe how ice melts under pressure and refreezes when the pressure is removed.
  • Describe how a substance can absorb or release energy with no resulting change in temperature.

Chapter Terms:

  • evaporation
  • sublimation
  • condensation
  • boiling
  • melting
  • regelation

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Chapter Outline Framework:

  • Evaporation
    • Condensation in the atmosphere
  • Fog and Clouds
  • Boiling
    • Geysers
    • Boiling is a Cooling Process
    • Boiling and Freezing at the Same Time
  • Melting and Freezing
    • Regelation

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Jo's World