Enrichment Activity for 5-11 11-14
- Level Elementary
What you need
- An Alka-Seltzer tablet
- An empty film canister
- Old newspaper
- Put the tablet in the film canister. Add about 1cm of water
- Put the lid on, lightly shake the canister
- Quickly place it upside down on the newspaper and stand back!
Results and Explanation
The Alka-Seltzer fizzes when in water, releasing gas. This gas builds up in the canister until the pressure is too great and the lid is forced off!