Materials

  • 4 Clipboards
  • Paper (with charts printed on them)
  • Pencils
  • Stop watch
  • Meter stick
  • Goggles or safety glasses
  • 30 Plastic canisters (film canisters)
  • 2 Gallons of water
  • 45 Alka-Seltzer tablets
  • Paper or cloth towels