Learners view animations showing methods of measuring the pH level of a solution using litmus paper and electronic instruments.

In this animated object, learners view hydrogen and hydroxide ions in a solution. A brief quiz on the basic principles of the term pH completes the activity.

In this animated object, learners examine how changes in pH affect the salt bonds in strands of hair.

Learners view an animated presentation showing how the pH level of a cleaning solution is controlled in a closed-loop system in a manufacturing setting. A quiz completes the activity.