You will need! - One empty 35mm plastic film canister and lid. These are getting harder to find, but stores that develop film should have some. (The white canisters work much better than the black ones do.) - One fizzing antacid tablet (such as Alka-Seltzer – Get this from your parents) - Water - Safety goggles What to do? Put on those safety goggles and head outside – no really, when this works, that film canister really flies! If you want to try the indoor version, do not turn the canister upside down in step 5. Break the antacid tablet in half. Remove the lid from the film canister and put a teaspoon (5 ml) of water into the canister. Do the next 2 steps quickly Drop the tablet half into the canister and snap the cap onto the canister (make sure that it snaps on tightly.) Quickly put the canister on the ground CAP SIDE DOWN and STEP BACK at least 2 meters. About 10 seconds later, you will hear a POP! and the film canister will launch into the air!
The Best Knowledge You Can Get