Petunia By hescollin

Fun Projects.
ALKA SELTZER ROCKETS. (you can get empty film canisters from ---one-hour photo ---Wal-mart ---photo shops) This is an outside project. Fuji film canister – the kind where the lid fits inside the canister.

The others don’t work. 1. Optional: Make a cone and tape it to the top of the canister. 2. Fill the film canister ½ full with warm water. 3. Put in ¼ tablet of Alka Seltzer – no more 4. Snap the lid tightly into the canister, turn it over on a hard surface and stand back. The lid is on the hard surface. The sodium bicarbonate will make the canister launch

into the air. If you vary the temperature of the water, your rocket will shoot to different heights. The warmer the water, the higher it will go.
5. This was a fun and educational projects. Students had a blast.

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