Things You'll Need:
- 2 liter bottle, a little less than half full.
- A bicycle pump.
- Common wine cork
- optional, construction paper and any other materials used to customize and design "rocket"
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Step 1
You will need to first make the 2-liter bottle stand on its own, upside-down. you can do this by using glue and cardboard to apply "legs" to the bottle. a tri-pod formation works best.
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Step 2
You will then fill the bottle a little less than halfway with water. Apply the cork to seal out the water from escaping the bottle. Water temperature will not play much of a factor in this experiment.
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Step 3
Outside in an open area, insert the needle from the bicycle pump into the cork at the base of the bottle and start pumping slowly. After about 5-7 pumps the air prussure will build and the cork will pop out. This will cause a "blast off" and if all goes well your "rocket" should launch about 30-60 feet in the air.










