Materials List: Test & Improve:
Making Tall & Strong Recycled Towers

Each group needs:

  • 1 ft2 (0.1 m2) piece of cardboard
  • 1 tennis ball
  • 4 aluminum cans
  • 12 sheets of newspaper
  • 4 750-ml plastic bottles (such as soda bottles)
  • 6 plastic yogurt cups
  • 5 ft (1.5 m) string
  • 5 ft (1.5 m) masking tape
  • 1 pair of scissors
  • 1 stopwatch
  • Recycled Towers Worksheet, one per student

To share with the entire class:

https://www.teachengineering.org/activities/view/cub_environ_lesson05_activity3