Grade Levels: 6-8, 9-12


This lesson plan accompanies Virtual Labs: pH Scale and Meter Calibration, which is adaptable for grades 6-12. This interactive lab challenges students to test the pH of common liquids and learn how a food’s pH affects it safety in storage. Then they calibrate the pH meter and use it in a lab.

Lesson Plan Common Core State Standards Alignments

Lesson Plan Next Generation Science Standards Alignments

Students will:

  1. Use an online "virtual" laboratory to explore food science lab equipment.
  2. Demonstrate standard techniques for pH testing.
  3. Explain how to use a pH meter and calibrate it by measuring solutions of standard value.


This lesson plan uses an online interactive virtual laboratory called pH Scale and Meter Calibration. The purpose of the lab is to familiarize students with food science lab equipment and teach standard techniques for this pH testing procedure. Students will be introduced to the pH scale and its uses, gain familiarity with the equipment and procedures encountered in natural science investigations, learn how to use the pH meter, and calibrate it by measuring solutions of standard value.

Lesson Procedure:

  1. Play the pH Scale movie for the class.
  2. Guide students to understand that in food science, the pH of a substance–how acidic or basic it is–is key to how it functions in recipes. Tell students they will have a chance to explore this through a virtual lab.
  3. Project the pH Scale and Meter Calibration virtual lab on a white board. Have student volunteers complete the first part of the interactive as you help them make connections to prior learning and learn how to utilize the interactive. Discuss techniques for using the pH meter and calibrating it by measuring solutions of standard value.
  4. Provide 10-15 minutes for students to complete the interactive on their own computer. Alternatively, you can have students work with a partner.
  5. If possible, allow students to conduct a similar chemistry investigation in the science lab.

Extension Activities:

Explore other Virtual Labs on GameUp!