Each group needs:

• 1 rectangular strip of polyurethane (10 cm x 1 cm x 2 mm)
• 1 rectangular strip of clear elastic rubber (10 cm x 1 cm x 0.5 mm)
• 1 set of weights
• 1 ruler or measuring tape
• 1 lab stand
• 1 clamp (to securely attach the material strip to the lab stand)
• 1 S hook or carabiner (to hang the weights from)
• 1 laptop with access to Excel (or Google Sheets)
• 1 utility knife
• Introduction Worksheet (one per student)
• Stress Test Worksheet (one per student)