Students read different definitions of "acids" and "bases." In an interactive exercise, they identify if a substance is an acid or a base.
By Jill Larson
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.
By Joan Kornitz