Miniature Rocket Experiment

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Try this fun rocket made from recycled filmcanisters. It's a craft and science experimentwrapped into one, and it's a perfect Fourthof July backyard activity!

You will need:

  • Alka Seltzer tablets, or store brand equivalent
  • Fuji empty film canisters with lids-the clear white ones
  • Paper, markers, tape and scissors
  • Water

The first step is having your child decorate his "rocket".All tape must be away from the lid area, so the topwon't be obstructed in any way. Work with the cap ortop of the canister at the BOTTOM. He or she canmake a cone to put on the top of the canister, so itlooks like a rocket. Decorate the cone before tapingonto the canister, then tape in place. Another optionis to cut little "fins" for each side of the rocket andtape in place also.

When the canister is decorated you will be ready toadd the "fuel". This is where the science experimentcomes in. You will need to add water and a part ofthe Alka Seltzer tablet to the canister and seal itwith the lid. But how much? Have each person guesswhat amounts may work. What happens? (Thecorrect amount that usually works the best is 1/4tablet added to the canister 1/4 filled with water. )

Add the tablet and water, put the lid on and placethe rocket CAP DOWN on the ground. Now wait-in a couple of minutes the rocket will shoot up in theair from the pressure of the tablet creating gas in thecanister and it becomes a rocket! You can do thisexperiment over and over, though your paper mayneed to be replaced after awhile.

Note: You can inquire at film developing studiosor store film departments and they may give you abag of Fuji canisters. Just ask!


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Skill Level: 
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