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How to make a alka seltzer film canister rocket.

Step 1: Gather These Supplies

water

1 film canister

alka seltzer

Step 2: Filling the Film Canister

Fill the film canister with a 1/4 inch of water.

Step 3: Launching It

Quickly drop 1 alka seltzer tablet into the film canister put the lid on and flip it over then step back

<p>So simple....I thought I was missing something. </p>

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