Show an item or two marked with a plastic recycling symbol. Use a disposable cup made of clear plastic or Styrofoam, a plastic bag, or a plastic food package. Let the students find the symbol and note its number.
Although plastic recycling numbers are voluntary, discuss why many manufacturers include them on new products. The recycling numbers occur in many places on plastic items and not in a standard location.
Distribute the Plastic Packaging activity sheet to each student.
Preview the directions with the class. Suggest qualities such as color, thickness, and transparency for the students and their family members to notice on item 2 on the sheet. Ask students to complete and bring their activity sheets back to class within an appropriate time period (a few days or up to a week). Students may need
grid paper to graph the data collected on the activity sheet.
Students can compile the total numbers of unmarked plastic items and the number with each marking. Have group representative help to compile a chart or graph of the class's findings. Help students analyze the data using the Questions for Students (below.)
If feasible, students can work with their families to develop plans to conserve and recycle plastics. Invite students to share some of their families' suggestions about conserving and recycling plastics.
