Instructions

  • Fill one canister with water to about one quarter, one canister to about half, and one canister to about three quarters
  • Insert a quarter of an Alka-Seltzer tablet into the first container, cap immediately, and flip upside down onto the ground and stand back
  • Use the stopwatch to time the reaction
  • Use a meter stick to measure the height of the canister
  • Use the chart provided for recording times and measurements
  • Repeat with the other canisters
  • Repeat all steps using half of a tablet and compare results
  • If time allows, repeat all steps with a full tablet and compare results
Quarter Tablet Trial 1 Time Trial 1 Height Trial 2 Time Trial 2 Height Trial 3 Time Trial 3 Height
Quarter water

 

Half water

 

Three quarters water
Half Tablet Trial 1 Trial 2 Trial3
Quarter water

 

Half water

 

Three quarters water
Full Tablet Trial 1 Trial 2 Trial 3
Quarter water

 

Half water

 

Three Quarters water