1. Part 1:
      2. Agree  Disagree
      3. Part 2:
      4. Part 3:
      5.  Text supports
      6. pages 638 - 641
      7. pages 638 - 641

      General Science Reading Log   Name _________________________________

      Changes of State       Date _______________  Period ________

      p. 638-641

       

      Part 1:

      Before you read this section, read each statement below. If you believe a statement is true, place a check in the Agree column. If you believe a statement is false, place a check in the Disagree column. Be ready to explain your choices.

       

      Agree    Disagree

        o   o   1. Temperature is a measure of the speed (kinetic energy) of molecules.

        o   o   2. The melting point of water is the same as the freezing point.

        o   o   3. When a material is changing state, the temperature changes.

        o   o   4. Some materials don’t melt: they change directly from a solid to a gas.



      Part 2:

      Do the reading log on the back side of this page.

       

      Part 3:

      After you have done the reading log, look again at the questions and your answers in Part 1. If the information you read, supports your answer, check in the Yes column below, then write what the text says in column (A). If the information does not support your choices, place a check in the No column and write what the text says in column B.

       

       Text supports

       my choice.    (A)    (B)  

       Yes  No   Why is my choice correct?  Why is my choice incorrect?

      1.   o   o  ________________________  ________________________

            ________________________  ________________________

            ________________________  ________________________

      2.   o   o  ________________________  ________________________

            ________________________  ________________________

            ________________________  ________________________

      3.   o   o  ________________________  ________________________

            ________________________  ________________________

            ________________________  ________________________

      4.   o   o  ________________________  ________________________

            ________________________  ________________________

            ________________________  ________________________



      pages 638 - 641
      Paragraph #
      What is this about?
      What is special?
      p. 638 #1    
      		   
        p. 638 #2 & 3  
      		   

       

       

        

      p. 638 #4 and p. 639 #1
      		   

       

       

        

      p. 639 #2
      kinetic energy & potential energy
      		  

       

        

      p. 639 #3 and p. 640 #1
      		  
      p. 640 #2
      vaporization
      		  

        

      p. 640 #3
      heating curve of water
      		 Compare graph to yours. How is it similar?

       

       

       

      p. 641 #1
      		   

       

       

        



      pages 638 - 641
      Paragraph #
      What is this about?
      Why is it special?
      p. 638

      #1

       

       
      particles
      • all matter made of particles
      • dif. materials made of dif. types of particles
      • particles are always moving
      • closer particles have greater attractive forces
      p. 638

      #2 & 3

       
      temperature
      • liquids expand when hot
      • temperature is measure of speed of molecules
      • temperature = average KE of molecules
      • KE = ½ mv 2
      p. 638

      #4

      and

      p. 639

      #1
      melting & freezing points
      • as temp increases, KE of particles increases
      • normal melting pt. = temp when water changes from solid to liquid
      • normal freezing point = temp when water changes from liquid to solid
      p. 639

      #2
      kinetic energy & potential energy
      • when temp of water stayed same (0c), avg. KE did not change
      • all energy caused phase change (change in PE)
      • if change in KE, then change in temp.
      p. 639

      #3

      and

      p. 640

      #1

      boiling point
      • 100 º c = normal boiling point
      • if atm. pressure <1, water will boil < 100 º c, like on Mt. Rainier
      p. 640

      #2
      vaporization
      • at boiling pt, temp. didn’t change even with heat energy added
      • temp would stay same until liquid vaporized
      p. 640

      #3
      heating curve of water
      		Compare graph to yours. How is it similar?

       

       

       

      p. 641

      #1
      sublimation
      • dry ice (solid CO2) doesn’t have melting point
      • dry ice has sublimation point
      • sublimation = solid to gas

       

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