Water Bottle Rocket
First you take a 2 liter pop bottle, then you take a cork (Value Home center) and put a basketball pin right through the middle of the cork. make sure the cork is big enough so that not a drop of water can leak out. Next you connect the pin to the airpump, and fillthe bottle 2/3 with water and stick the cork allthe way until it reaches the bottom of the neck of the bottle. you can add fins to stand it up or have someone who is willing to get wet hold it. Turn the bottle upside down and begin to pump and after 10 or more pumps the bottle should launch. Try different size bottles with different corks. ( the smaller bottles go higher){{{
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By: Karim
Hello there!
Make stars to use in homemade fireworks e.g. roman candles, shells etc. Please excuse the fact that there are no photos. PLEASE NOTE - IF THIS IS ILLEGAL, THEN PLEASE REMOVE THIS FROM THIS SITE. I TAKE NO RESPONSIBILITY IN ANY INJURIES AND/OR DEATHS INVOLVED WITH MAKING THIS.
This is really easy to make but the part other than the rubberband is hard to get so use something else.
This is fun and cheap and fun.
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first
Today: a rocket launcher made out of a bic mechanical pencil.