This interactive powerpoint really got my students to actively engage in learning and working on density problems. This powerpoint includes 33 slides to help students understand density and work on 20 practice problems. The first 13 slides provide visuals and information about density. The last 20 slides include practice problems with the answer key already included in the powerpoint. The practice problems were designed to be broken down into chunks (a few problems at a time) and to get students to work in pairs to problem solve and figure out the answer. As a teacher, you can facilitate by having the students explain the answer with the class.