Youngsters develop an understanding of how smog is produced, and how exhaust from automobiles is one of the major sources of smog. They explore the roles that engineers play in developing technologies that reduce smog, then work in teams to create an advertisement for a hybrid vehicle. A fabulous lesson plan that is chock-full of terrific attachments such as, streamed video, websites, and worksheets that will all support student learning. I would highly recommend implementing this resource with your class.