oshc activities
Science Day / Fizzy Canister Rockets

Fizzy Canister Rockets

Older children add a fizzing tablet and water to small snap-lid canisters and watch the gas build up and pop the lids skyward.

How to run it

  1. Put on safety goggles and mark a launch zone outdoors.
  2. Add a little water and a quarter of a fizzing tablet to a canister.
  3. Snap on the lid quickly, turn it upside down and step well back.
  4. Wait for the pop and talk about gas pressure.

You will need

  • small snap-lid plastic canisters
  • effervescent tablets
  • water
  • safety goggles
Make it easier or harderRun as an educator demo for younger children, or let older children test water amounts.
SafetyWear goggles, never lean over a canister, and store tablets away from children.
My Time Our Place · Outcome 4Children test predictions about gas and pressure.

Fits these theme days

Science DayRocket and Plane DayScience WeekSpace ExplorersAfter School Quick STEM

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