Materials List: Water Power

Each group should have:

  • 1 empty, clean 2-liter plastic soda bottle (or a 20-oz bottle, depending on availability) with holes drilled in the cap and the bottom of the bottle so that a wooden dowel fits through length of the bottle like an axle
  • 1 pair of scissors
  • duct tape
  • wooden dowel (~ΒΌ inch diameter and longer than the soda bottle length)
  • string
  • fin material, such as cardboard, index cards, straws, toothpicks, popsicle sticks, walls of plastic bottles, etc., that students can use to make turbine fins
  • water-proofing materials (such as aluminum foil, plastic wrap, etc.) to wrap over any paper fins to keep them from disintegrating in the water
  • water
  • sink tap and drain access
  • stopwatch