Our 2nd class boys performed an exciting science experiment today. We decorated an old film canister and filled this 1/3 of the way with water. Then, we dropped half an Alka Selzter tablet into the canister. We quickly snapped the lid on tight and turned it upside down (so the lid was on the ground). When the tablet and the water mix, it creates a chemical reaction. It goes up because gas is building and building in the closed film canister and since the lid is the weakest point of the canister, the lid pops off and all that gas comes rushing out of the end of the canister. We had so much fun watching these shoot into the sky and discussing why some rockets worked and others just bubbled and fell over. Well done boys! 🚀
