Denise Ascenzo

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					Denise Ascenzo                                                                    SCE 613
Oakley Coleman                                                                    Microteaching
Ben Gnacik                                                                        2/14/05

                                OOBLEK/ CRAZY COLLOID

Topic: Properties of Liquids and Solids

       Water
       Cornstarch
       Plastic Baggies
       Posterboard/markers
       Paper towels/cleaning supplies
       Bartholomew and the Ooblek- Dr. Seuss
       Worksheet with summary questions

Purpose: To provide students with a basic understanding of the differences in states of matter,
         particularly solids and liquids through use of inquiry and the learning cycle.


   1. To have students gain experiences working with peers and respect each other’s ideas by
      exercising cooperative learning through group exploration.

   2. To have students construct understanding about the different states of matter and their
      properties through free exploration and scientific inquiry.

   3. To allow students to generate their own data by choosing how to manipulate variables in
      the creation of Ooblek, and present students with the opportunity to interpret results from
      their experiment.

    4. To meet the following New York State Standards:
Scientific Inquiry
       S1.1: Ask “why” questions in attempt to seek greater understanding concerning objects
              and events they have observed and heard about.
       S1.2: Question the explanations they hear from others and read about, seeking
              clarification and comparing them with their own observations and understandings.
       S1.3: Develop relationships among observations to construct descriptions of objects and
              events and to form their own tentative explanations of what they observed.
       S3.1: Organize observations and measurements of objects and events through
              classification and the preparation of simple charts and tables.
       S3.2: Interpret organized observations and measurements, recognizing simple patterns,
              sequences and relationships.
       S3.3: Share their findings with others and actively seek their interpretations and ideas.
       S3.4: Adjust their explanations and understandings of objects based on their findings and
             new ideas.

Physical Setting
      3.1b: Matter has properties that can be observed through the senses.
      3.1c: Objects have properties that can be observed, described, and/or measured.
      3.1f: Objects and/or materials can be sorted or classified according to their properties.
      3.2a: Matter exists in three states: solid, liquid, gas.
      3.2c: Changes in the properties or materials of an object can be observed and described.

Questions for investigation:
      1. What properties of solid and liquid can be tested with the materials given?
      2. What are the properties of Ooblek that make it a solid or liquid state?
      3. Why does Ooblek show properties of both?
      4. What would happen if more or less of one reagent were added to the Ooblek
      5. What may contribute to the changes observed?
      6. What other household uses can you think of for cornstarch or water that may do the
          same thing you observed it did to Ooblek?
              a. Stiffening collar
              b. Dilutions

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