Materials List: Bridge Types:
Tensile & Compressive Forces

Each group needs:

  • Bridge Notes Worksheet, one per student
  • 1 small sponge (or flat eraser)
  • 1 dark ink pen or marker
  • 1 strip of cardboard or poster board (1-in wide x 11-in long; 2.5-cm wide x 28-cm long)
  • 1 10-foot (3-m) piece of string or small diameter rope
  • 1 11-foot (3- or 4-m) piece of rope
  • several textbooks (at least four)
  • Bridge Types & Forces Worksheet, one per student