In this video we are shown how to make a homemade rocket. The necessary items are as follows: A plastic bottle, a bicycle pump and a cork. First, cut the cork in half and make sure that it fits in the mouth of the bottle. Next, take a nail and push it through the cork so that it makes a hole going from one flat side to the other. Remove the nail and replace it with the needle from the bicycle pump, making sure that the needle is fully through the cork so that it is sticking out the other end. After this, attach the needle to the bicycle pump itself. Now you will want to fill your bottle about a quarter of the way with water. Place the cork, which has the bicycle pump needle through it, in the mouth of the bottle making sure that there is an air tight fit. At this point you can paint your bottle so it will be visible in the air, but this stage is entirely optional. Now your bottle rocket is ready to launch. Prop it up against something, aim it upwards and begin pumping. Once enough pressure builds up it will launch into the air.
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