Materials List: The Magician's Catapult

Each group needs:

  • 11 Popsicle┬« sticks
  • 1 tongue depressor
  • Hot glue sticks and glue gun
  • 1 drinking straw (non-flexible)
  • 1 wooden dowel, with diameter smaller than straw, but not shorter than popsicle stick
  • 1 small rubber band
  • 6-8 grapes
https://www.teachengineering.org/activities/view/cub_simp_machines_lesson04_activity1