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Water bottle cap rocket

Step 2Build the pressure

What you want to do here is twist the middle section of the bottle so you have two sections. The bottom one is useless... disregard it. We want to focus on the top portion. A fair amount of pressure will build there. I really don't know how this could go wrong.
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1 comment
Oct 10, 2006. 1:42 PMCRAP says:
So tell me, do you twist Kirkland or the bottle?

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Author:Mr. Deeds