Looking for a terrific chemistry activity for your 5th graders? This one could be for you! After a teacher-led demonstration, learners are broken up into groups and perform an experiment using cabbage juice, water, window cleaner, and vinegar. The goal of the activity is to drive home the point that when two liquids are mixed together, and a color change takes place, that it is an indication of a chemical change taking place. Excellent worksheets and lab sheets are embedded.