Parts of systems are identified. For students who experience difficulty with classification of systems as living or nonliving, provide additional examples of systems for classification practice. In addition to classifying, students give an explanation of why the system fits that classification. Each student designs and constructs a living or nonliving system with at least four parts. The student provides a description of that system and an explanation of the effects on the system if parts are removed.
Students construct their various systems.
All proposed projects should be approved by the teacher before construction. Instruct students to design a system with four or more parts. Each part should be labeled and an explanation of the function or purpose of each part should be given. After designs are approved by the teacher, students will construct the system. After projects are completed they should be presented to the class orally.