titration visualzation by stariya


Name ___________________________________________ Hour _____ Date ____________________________________________
                                                     Visualizing Titrations
This is a group writing and artwork assignment. However, you may choose to do the assignment as an individual, but you are still
responsible for all parts.

Part 1. RAFT Writing
                          R      role        you are the water molecules (solvent) in vinegar (acetic acid solute)

                          A      audience    other chemistry students

                          F      format      creative story (word-processed)

                          T      topic       explain what occurs during a titration

Choose a creative scenario that would be an analogy for the chemical reaction occurring during a titration. From Writing Tip #13:
Analogies, Metaphors, and Similes (www.colorado.edu/pwr/writingtips/13.html):

     Analogies are things or stories that partially resemble each other, and successful use of analogy helps you explain things by
     comparing them closely with things your audience already knows about. Let's suppose that you want to explain the quail's
     egg you ate at a Chinese restaurant. If you tell your friend that the quail's egg was about 1/3 the size of a hen's egg, and that
     it was a bit "moldy-tasting," you will have used two analogies to explain the quail's egg. You used a hen's eggs as an analo-
     gy for size, and you used mold as an analogy for the taste.

Brainstorm what your creative scenario would be. Remember you are the water molecules in the Erlenmeyer flask and you want
to describe what is happening during the titration.

Factual information to creatively include in your story:
          strength of acetic acid and sodium hydroxide (weak or strong)
          relative pH of acetic acid and sodium hydroxide
          phenolphthalein and its role
          chemical reaction and changes in number (moles) and types of particles
          chemical reaction and changes in pH

A rubric for grading the story is on the back.

Part 2. Artwork

Create a visual representation of the story. This can be a one drawing of a particular scene or point in the story or it can be a
series of drawings representing the entire story.

Artwork Rubric
Minimal                             Basic                               Proficient                       Advanced

construction is poor; no appar-     construction is haphazard; little   construction is well done; some construction outstanding; thought
ent effort went into the creation   apparent effort went into the       effort went into the creation of and effort went into the creation
of the artwork; creativity is       creation of the artwork; creativ-   the artwork; creativity is li-   of the artwork; creativity abounds
absent                              ity is lacking                      mited

artwork has no relation to the                                          artwork supports the story       artwork enhances the story
Written Story Rubric
                  Minimal                          Basic                        Proficient                    Advanced
Content             Ideas expressed ineffec-       Communicates some main       Ideas expressed clearly       Ideas are expressed clear-
                    tively; content may be         ideas, but may be vague,     and effectively; content is   ly and effectively; content
                    inappropriate or irrele-       confusing, or underdeve-     appropriate; some content     is appropriate; main ideas
                    vant; little if any support-   loped; supporting details    is too general or vague;      supported with details and
                    ing information. Most          are limited. Some errors     most ideas are supported      examples. No factual
                    factual information is         in factual information.      with examples. Few errors     errors in information.
                    incorrect.                                                  in factual information.

Organization        Little, if any, organiza-      Some evidence of organi-     Structure is appropriate;     Structure is appropriate;
                    tional structure to the        zation, but is limited or    details and supporting        details and supporting
                    writing.                       inappropriate to the task;   evidence are usually in a     evidence are in a logical
                                                   minimal use of transi-       logical order but may         order and relevant to the
                                                   tions.                       have occasional lapses;       audience; transitions are
                                                                                some transitions may be       effectively used.

Sentence Fluen-     Basic command of lan-          Little rhythm or flow;       Some rhythm and flow          Strong rhythm and flow
cy and Word         guage.                         sentence variety and word    created through variation     created through variation
Choice                                             choice are limited.          in sentence type and          in sentence type and
                                                                                length; word choice gen-      length; word choice vivid,
                                                                                erally effective and pre-     effective and precise.

GUMPS               more than 10 errors that       5-10 errors that signifi-    1-5 errors sometimes de-      1 or 2 errors that do not
(grammar,           significantly detract from     cantly detract from read-    tract from reading.           detract.
usage, mechan-      reading.                       ing.
ics, punctuation,

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