Ionic Compounds - Conductivity

   Contents

 Task

In this activity, high school chemistry students begin to formulate a working definition for covalent (non-ionic) and ionic compounds by investigating patterns of conductivity with various liquids and aqueous solutions.


 GPS Addressed (click [+] to expand)

    Co-Requisite: Characteristics of Science

    Habits of Mind

    [-] SCSh1. Students will evaluate the importance of curiosity, honesty, openness, and skepticism in science.
      a. Exhibit the above traits in their own activities.
    b. Recognize that different explanations often can be given for the same evidence.
    [-] SCSh3. Students will identify and investigate problems scientifically.
      a. Suggest reasonable hypotheses for identified problems.
    e. Develop reasonable conclusions based on data collected.
    [-] SCSh4. Students will use tools and instruments for observing, measuring, and manipulating scientific equipment and materials.
      a. Develop and use systematic procedures for recording and organizing information.

    Nature of Science

    [-] SCSh7. Students will analyze how scientific knowledge is developed.
     

    e. Testing, revising, and occasionally rejecting new and old theories never ends.

    Co-Requisite: Characteristics of Science

    Content

    [-] SC3. Students will use the modern atomic theory to explain the characteristics of atoms.
     

    e. Compare and contrast types of chemical bonds (i.e. ionic, covalent).


 Video (duration: 20:34)

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Use these questions to guide your thinking about some of the important teacher ideas in the lesson featured in the video clip.

  1. How does the teacher use the essential features of inquiry in this lesson?
  2. Note how the teacher uses questioning in this video. What do you notice?
  3. How does the teacher use the white board in this lesson?
  4. How can a demonstration be used effectively as a focal point in an inquiry lesson?

 Classroom Materials / Lesson Outlines