Education Technology

Chemistry: Thirst Quenchers Inquiry
by Texas Instruments - Data Collection with Probes Lesson


  • Students will write equations for the dissociation of compounds in water.
  • Students will use a Conductivity Probe to measure the conductivity of solutions.
  • Students will determine which molecules or ions are responsible for conductivity of solutions.
  • Students will investigate the conductivity of common drinks resulting from substituent compounds that dissociate to produce different numbers of ions.


  • conductivity
  • electrolyte
  • nonelectrolyte
  • molecular acid
  • molecular compound
  • ionic compound
  • molecule
  • ion

About the Lesson

This lesson involves testing the conductivity of common solutions.
As a result, students will:

  • Perform the preliminary activity, and then generate a researchable question of their own.
  • Plan their research, carry out the research plan, organize and graph the data, draw a conclusion, and communicate the results.