This is a collection of five group activities with answer keys that can be used at the end of the school year or intermittently throughout the year. Groups can be selected randomly or created by you. I selected my groups, which I called Lab Groups, based on having one high performing student and one low performing student in each group. I used these lab activities as a grade. They can also be used as final or AP exam practice. They are perfect for end of the year activities to prepare for finals