In this lesson, students use their knowledge of forces to answer the driving question: What components and materials can be used to create a model chair lift, designed to carry a set of aid materials? They use the Engineering Design Process to design, build, test and critique model lifts. The lesson also directly addresses Newton’s Second Law as the students make a new design to move larger masses. *NOTE: This review is for the lesson as given under “Instructional Resources” on the website, NOT the Word document labeled “Intermediate Lesson Plan” . The Word document is an engineering lesson that does not address forces and motion.