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									                  EXPOSITORY ESSAY - SCIENCE FAIR PROJECT-
                                                                                                       9


                                                Student details:
  Name ……..Yuexin Li…………….… Class M                         ........... 5 -1 Number ............. 10
  Weebly ID 29692 ................................ Mobile number………0831114680……………..
  Email      my_life-13537@hotmail.com ......           Published file name   science project........


Table of Contents
          1. TABLE OF CONTENTS
          2. FORMATIVE REQUIREMENTS COVER
          3. BRAINSTORM / RESEARCH (ideas, reference paper, mind-map)
          4. EXAMPLE OF PROJECT (cut/paste from reference paper.)
          5. GRAPHIC ORGANIZER (flow chart)
          6. ESSAY MAP
          7. ORIGINAL DRAFT: (Name of peer who revised)
          8. REVISED DRAFT: (Name of peer who edited)
          9. PUBLISHED WORK- ORIGINAL
          10. RUBRIC (self graded)
          11. PUBLISHED WORK - TEACHER’S COMMENTS




 Publishing Checklist
        PREVIEW PUBLISHED ON HOMEPAGE
        COMMENTS POSTED TO LEARNING GROUP’S BLOGS
        REFERENCES AND CITING COMPLETE


 Comments:
Friday 26th November, 2010                                                          Teacher: Neville




    Expository Essay- Science Fair Project.(One page essay)
       Students are expected to explain the process of a Science Fair Project,

       as published in Teaching ESOL Through Science Fair Experiments, by Judie
       Haynes.



 Structure         Expository Essay, published on student’s weblog (including all prewriting).



 Procedure         Students log on to class weblog/ formative page and download the following files:
                   EXPOSITORY SCIENCE FORMATIVE
                   SCIENCE PROJECT

                   The EXPOSITORY SCIENCE FORMATIVE file should be immediately published onto
                   the student’s weblog.

                   The above files contain all the information needed to complete this exercise.



 Students’ production

                   By Wednesday 8th December, 2010, students will have completed their work.

                   Students are required to publish updates of their file,     progressively.

   Teacher will then comment on individual student’s     9. PUBLISHED WORK- ORIGINAL and email it to
them   for pasting to the final page of their file;11.PUBLISHED WORK - TEACHER’S COMMENTS


 Objectives

    Students will display knowledge of the elements of an Expository Essay by explaining the process,
in logical order, for a science fair experiment.



                                 http://www.writingcnep.weebly.com
                                         PROJECT EXAMPLE
Question:
       Why Does An Egg Float On Salt Water?

Hypothesis:
   The buoyancy of the egg increases as salt is added to fresh water, illustrating changes in density.
Materials:
    -uncooked eggs in their shells that have been removed from the refrigerator so that they reach room
temperature.
    -measuring cup, plastic or wooden stirrer
    -clear bowl or beaker
    -teaspoon
    -salt ruler
    -small food scale
Variables:
    The variables in my experiment are the egg can flotation in the beaker that we can use egg only
Procedures:
    -Fill a beaker with 1 cup of water and carefully place one egg in the water
   -Measure 1 tsp. of salt and dispense this into the beaker of water
   -Add the total number of teaspoons of salt needed to displace the egg in the water
   -Career Development Community Add the amount of salt in small increments to make eggs float and
more, salt affects the density of water.
Results:
  When I add salt to the bottle can make the egg float.

Conclusion:
    An amount of salt weighing the same as the egg mixed in 200 ml (6.75 oz.) will cause the egg to float.
Since a cup is approx. 237 ml, adding an amount of salt weighing slightly more than the fresh egg will cause
the egg to float. Your experiment log details how increasing concentration (adding more salt) has a direct
effect in increasing density, causing the egg to float.
                                BRAINSTORMING, RESEARCH, MIND-MAP


                                                      The buoyancy of the egg
                                                    increases as salt is added to
                                                       fresh water, illustrating
                                                         changes in density.


                                                                                             -uncooked eggs
Why Does An Egg Float On Salt Water?
                                                                                             -measuring cup, plastic or
                                                              Hypothesis                     wooden stirrer
                                                                                             -clear bowl or beaker
                                                                                             -teaspoon
                                                                                             -salt ruler
                            Question
                                                                                             -small food scale

                                                                                                                Materials
                                                           Egg Flotation
                                                                                        Conclusion


                    Procedure
                                                                                      Adding an amount of salt weighing
                                                                                      slightly more than the fresh egg will
                                                                                      cause the egg to float. Your
                                                                                      experiment log details how
               -Fill a beaker with 1 cup of water and                                 increasing concentration (adding
         carefully place one egg in the water
                                                                                      more salt) has a direct effect in
              -Measure 1 tsp. of salt and dispense this
                                                                                      increasing density, causing the egg
         into the beaker of water
              -Add the total number of teaspoons of salt                              to float.
         needed to displace the egg in the water
              -Career Development Community Add the                         Results
         amount of salt in small increments to make                                               When I add salt to
         eggs float and                                                                           the bottle can make
         more, salt affects the density of water.                                                 the egg float.
                                                  GRAPHIC ORGANIZER



   TOPIC:                                                                      LAST:    Conclusion:
                 Egg Flotation
                                                                               Adding an amount of salt weighing slightly
                                                                               more than the fresh egg will cause the egg to
                                                                               float. Your experiment log details how
                                                                               increasing concentration (adding more salt)
                                                                               has a direct effect in increasing density,
                                                                               causing the egg to float.
 FIRST:     Question:
 Why Does An Egg Float On Salt
 Water?



                                                                          NEXT: Presentation:
                                                                                     Current tests have been
                                                                          published and people in science and social
                                                                                       studies greatly
NEXT:     Hypothesis:
The buoyancy of the egg increases as salt is
added to fresh water, illustrating changes in
density.

                                                                            NEXT:     Results:
                                                                                       When I add salt to
                                                                               the bottle can make the egg float

NEXT:     Materials:
1. Uncooked eggs 2.measuring 3.wooden
stirrer 4.clear bowl or beaker
5. Teaspoon 6.salt ruler 7.small food scale
                                                                NEXT:     Procedures:
                                                                     -Fill a beaker with 1 cup of water and carefully
                                                                place one egg in the water
                                                                    -Measure 1 tsp. of salt and dispense this into the
                                                                beaker of water
    NEXT:      Variables:                                           -Add the total number of teaspoons of salt needed
         The variables in my experiment are the                 to displace the egg in the water
                                                                    -Career Development Community Add the
    egg can flotation in the beaker that we can
                                                                amount of salt in small increments to make
    use egg only
                                                                eggs float and more, salt affects the density of water.
                          Main idea 1                Supporting details 1


                          Question / Doubt           1.2 eggs, water and salt

                                                     1.3 It’s amazing and possible?


                             ESSAY MAP
                          Main idea 2                Supporting details2
Introduction                                                                              Conclusion
                                                     2.2Adding salt to water makes t
                          Hypothesis                                                      Summarize Main
Hook, Background,                                    he water more weight.
Purpose of Writing,                                                                       ideas, Link to P.O.W.
                                                     2.3Eggs can be floating.             Make a point
Main ideas
                          Main idea 3                Supporting details 3

                          Materials needed           3.2 Eggs and beaker

                                                     3.3 salt and wood stick

Have you                                             3.4 teaspoon and measuring
ever experiment in
                          Main idea 4               Supporting details 4
Science class?
Its fun and               Variables in the          4.2 I can see the eggs can be
                          experiment                                                      After the well -
                                                    floating
exciting to win will                                                                      tried we can find answe
                                                                                          rs to my own question
result in the                                       Supporting details 5
trial. You never try to                                                                   to why the eggs can
                          Main idea 5               5.2 Put the water in the beaker
float the egg?
                                                    and put egg carefully
You never know that       Experimental                                                    float. I think it will give
eggs can float.           procedures                5.3Put the salt in the water          you clear the principles
Then, So I was                                                                            of science in this article
                                                    5.4Egg will be floating
told how easy every
step that you can try
                          Main idea 6               Supporting details 6
the
trial to the wonders of   Result of the             6.2After I put salt in the water
 the egg can float. So,   experiment
                                                    6.3Egg can be floating
I am writing this
essay that will tell
you how the process       Main idea 7                Supporting details 7
of experiments
including hypothesis,     Presentation               7.2 Distribute the knowledge

materials, procedure,                                7.3 A surprise to the floating egg
results, presentation
and conclusion.
                                                     Supporting details 8
                          Main idea 8
                                                     8.2 The egg can be floating when
                          Conclusion                 they put salt in the water

                                                     8.3We have the knowledge of the
                                                     eggs were floating



                           Main Ideas                  Supporting details

                           Support P.O.W. Fact,        Detail supporting
                           Explain, Define, Other      Main idea and further
                           elements                    describe,
                                                       explain, define, or
                                                       give examples
                                         ORIGINAL DRAFT
           Have you ever experiment in Science class? Its fun and exciting to win will result in the
trial. You never try to float the egg? You never know that eggs can float. Then, So I was
told how easy every step that you can try the trial to the wonders of the egg can float. So, I am
writing this essay that will tell you how the process of experiments including hypothesis, materials,
procedure, results, presentation and conclusion.

         First step, ask yourself what experiment that you interested in, you need think your idea of
                                                                           float
that experiments. In this problem, the key is to check that the egg can be floating?

          Second step, you need to make up the hypothesis that the result according to happen. In
this case, I suppose that the egg can be floating.
          Third step, when you finish the second step you need to list all the materials needed and
prepared them. The materials that we use are 1.uncooked eggs in their shells that have been
removed from the refrigerator so that they reach room temperature2.measuring cup, plastic or
wooden stirrer3.clear bowl or beaker4.teaspoon5.salt ruler 6.small food scale.
          Then it is time to try. In every experiment the procedure should be careful and should
follow the step by step. First of all, Fill a beaker with 1 cup of water and carefully place one egg in
the water and then Measure 1 tsp. of salt and dispense this into the beaker of water next step add
the total number of teaspoons of salt needed to displace the egg in the water then career
Development Community Add the amount of salt in small increments to make eggs float and
more, salt affects the density of water.
                                                                         float
           After they put salt in the water we can see the egg will floating slowly.
           Then before making the conclusion of the experiment, the presentation should be made in
                                                we
order to according to the knowledge and We have the knowledge of the eggs were floating.
                                                                                      Float   Because
            After last step we can see the egg can be floating and why the egg can floating? because
To understand this we need to understand density, which basically refers to the amount of matter,
packed in an object, the egg and water both have densities and this determines whether the object
will float or sink. The egg sinks in plain water because in this case the density of the egg is greater
than that of the water. When we add salt, the amount of matter packed in the same amount of
water increase and hence it becomes dense. If you keep on adding salt a point will come that the
density of water exceeds that of the egg and the egg will become relatively lighter and start to float.
There is another way of understanding this, according to a principle developed by Archimedes, an
object placed in water will float when the force exerted by the liquid is greater than the liquid
displaced by the object which is called buoyancy. When we add salt to the water it exerts more force
of the egg than the water it has displaced and it starts to float.
                       Well-tried                                                                  float
            After the welltried we can find answers to my own question to why the eggs can floating. I
think it will give you clear the principles of science in this article.
                                         REVISED DRAFT
        Have you ever experiment in Science class? Its fun and exciting to win will result in the
trial. You never try to float the egg? You never know that eggs can float. Then, So I was
told how easy every step that you can try the trial to the wonders of the egg can float. So, I am
writing this essay that will tell you how the process of experiments including hypothesis, materials,
procedure, results, presentation and conclusion.

         First step, ask yourself what experiment that you interested in, you need think your idea of
that experiments. In this problem, the key is to check that the egg can be float?

          Second step, you need to make up the hypothesis that the result according to happen. In
this case, I suppose that the egg can be floating.
          Third step, when you finish the second step you need to list all the materials needed and
prepared them. The materials that we use are 1.uncooked eggs in their shells that have been
removed from the refrigerator so that they reach room temperature2.measuring cup, plastic or
wooden stirrer3.clear bowl or beaker4.teaspoon5.salt ruler 6.small food scale.
          Then it is time to try. In every experiment the procedure should be careful and should
follow the step by step. First of all, Fill a beaker with 1 cup of water and carefully place one egg in
the water and then Measure 1 tsp. of salt and dispense this into the beaker of water next step add
the total number of teaspoons of salt needed to displace the egg in the water then career
Development Community Add the amount of salt in small increments to make eggs float and
more, salt affects the density of water.
           After they put salt in the water we can see the egg will float slowly.
           Then before making the conclusion of the experiment, the presentation should be made in
order to according to the knowledge and we have the knowledge of the eggs were floating.

            After last step we can see the egg can be floating and why the egg can float? Because
To understand this we need to understand density, which basically refers to the amount of matter,
packed in an object, the egg and water both have densities and this determines whether the object
will float or sink. The egg sinks in plain water because in this case the density of the egg is greater
than that of the water. When we add salt, the amount of matter packed in the same amount of
water increase and hence it becomes dense. If you keep on adding salt a point will come that the
density of water exceeds that of the egg and the egg will become relatively lighter and start to float.
There is another way of understanding this, according to a principle developed by Archimedes, an
object placed in water will float when the force exerted by the liquid is greater than the liquid
displaced by the object which is called buoyancy. When we add salt to the water it exerts more force
of the egg than the water it has displaced and it starts to float.
             After the well tried we can find answers to my own question to why the eggs can float.
I think it will give you clear the principles of science in this article.
                                          PUBLISHED WORK

                                                     Egg

                                                Flotation
                                                             Have you ever experiment in Science class? Its fun and
                                                    exciting to win will result in the trial. You never try to float the egg?
                                                    You never know that eggs can float. Then, So I was
                                                    told how easy every step that you can try the
                                                    trial to the wonders of the egg can float. So, I am writing this essay
                                                    that will tell you how the process of experiments including
                                                    hypothesis, materials, procedure, results, presentation and
                                                    conclusion.

                                                             First step, ask yourself what experiment that you interested
                                                    in, you need think your idea of that experiments. In this problem, the
                                                    key is to check that the egg can be float?
          Second step, you need to make up the hypothesis that the result according to happen. In this case,
I suppose that the egg can be floating.
          Third step, when you finish the second step you need to list all the materials needed and prepared
them. The materials that we use are 1.uncooked eggs in their shells that have been removed from the
refrigerator so that they reach room temperature2.measuring cup, plastic or wooden stirrer3.clear bowl or
beaker4.teaspoon5.salt ruler 6.small food scale.
          Then it is time to try. In every experiment the procedure should be careful and should follow the
step by step. First of all, Fill a beaker with 1 cup of water and carefully place one egg in the water and then
Measure 1 tsp. of salt and dispense this into the beaker of water next step add the total number of
teaspoons of salt needed to displace the egg in the water then career Development Community Add the
amount of salt in small increments to make eggs float and more, salt affects the density of water.
           After they put salt in the water we can see the egg will float slowly.
           Then before making the conclusion of the experiment, the presentation should be made in order
to according to the knowledge and we have the knowledge of the eggs were floating.

            After last step we can see the egg can be floating and why the egg can float? Because
To understand this we need to understand density, which basically refers to the amount of matter, packed in
an object, the egg and water both have densities and this determines whether the object will float or sink.
The egg sinks in plain water because in this case the density of the egg is greater than that of the water.
When we add salt, the amount of matter packed in the same amount of water increase and hence it
becomes dense. If you keep on adding salt a point will come that the density of water exceeds that of the
egg and the egg will become relatively lighter and start to float.
            There is another way of understanding this, according to a principle developed by Archimedes, an
object placed in water will float when the force exerted by the liquid is greater than the liquid displaced by
the object which is called buoyancy. When we add salt to the water it exerts more force of the egg than the
water it has displaced and it starts to float.
             After the well tried we can find answers to my own question to why the eggs can float.
I think it will give you clear the principles of science in this article.
                                     Expository- Science Fair
     Objective                Emerging 1            Developing 2           Accomplished 3             Exemplary 4             Score


                            The writing           Limited attention to
                                                                                                   Attention to visual
                            demonstrates little   visual presentation is   Attention to visual
                                                                                                   presentation elements
PUBLISHING                  or no attention to    demonstrated. The        presentation elements
                                                                                                   is such that the writing
                            visual presentation   writing creates low      is strongly exhibited
                                                                                                   has an immediate
                            elements and is       desire to be read.       with only a few minor
                                                                                                   impact and is highly
                            uninviting to the     Reflects many “lost      “lost opportunities”
                                                                                                   inviting to the reader.
(Finished look)             reader.               opportunities”. .


Uniform spacing
                                                                                                                              2


Appropriate use of font
style, sizes and colors.
                                                                                                                              3


Appealing use of white
space                                                                                                                         3


Effective integration of
text and illustrations,
photos, charts, graphs,
maps and tables.                                                                                   No penalty                 4




Skillful and tasteful use
of colors in layout.
                                                                                                                              4


The blog reflects the
personality of the
                                                                                                                              4
writer.



EXPOSITORY
ESSAY ELEMENTS
                              Writing does not  Contains all elements
Gives facts. Explains.                                                     All elements are         Expository Structure
                            display elements of   but does not meet                                                           4
Steps in a process.                                                     present and complete.       exceeds requirement
                            an Expository Essay criteria in one or more
Present ideas in logical
order, correct
sequence.


ESSAY STRUCTURE

INTRO- contains strong
Purpose of Writing.

PARAGRAPHS-Topic              Basic Structure is Structure is generally                              Structure exceeds
sentence, plus              incomplete. Display evident and mostly         Structure is complete       standards and          4
supporting ideas and           little structure.        correct                                     enhances the writing
examples. Transitional
words used.

CONCLUSION- links
back to P.O.W.
PUBLISHED WORK- TEACHER’S COMMENTS

								
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