Give students a few minutes to write down as many of the materials that went into manufacturing the objects they brought as they can. A football, for example, would be leather, rubber, etc. Then ask students to explain to the class what materials went into the making of the item. Write responses on the board. Use hash marks to designate materials mentioned more than once.
Students identify the natural resource from which each material is derived.
Go down the list on the board and help students identify the natural resource from which each material is derived. Aluminum, for example, comes from bauxite. Some natural resources can be renewed and others cannot. Students identify which natural resources are renewable. Review some examples of renewable natural resources.