Materials List: Create a Safe Bungee Cord for Washy!

Each group needs:

  • a washer (affectionately called "Washy") with a weight of ~100 g*; such as a 1-1/8-inch USS flat washer (1-1/4-inch inner diameter, 2-3/4-inch outer diameter and 11/64-inch thickness); alternatively, use two ¾-inch USS flat washers (13/16-inch inner diameter, 2-inch inner diameter and 5/32-inch thickness); *washer weights may vary and the activity will still work
  • 15 - 20 rubber bands
  • 1 large piece of paper, such as chart paper, at least 54 inches (137 cm) long
  • masking tape
  • measuring tape, at least 5 feet (152 cm) long
  • (optional) calculator
  • (optional) bin or box to organize materials by group
  • (optional) paper and pencil for taking notes
  • Pre-Activity Quiz, one per student
  • Activity Worksheet, one per student
  • Post-Activity Quiz, one per student

To share with the entire class: