How to Make a Powerful Air Pressure Rocket

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Last Updated: January 1, 2024

Are you wondering how to make a beautiful rocket that can easily surpass a baking soda-vinegar rocket? It's really fun to make. Why don't you try to make it yourself? Make a great rocket with these great tips and tricks

Steps

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This is necessary to hold the rocket at launch time. Make your best design.
Remember, the bottle must be upside down and the flippers must not be taped at the bottle's base.^{[1]
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^{[2]
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(flippers do come in handy!)
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Since action has an equal and opposite reaction, the bottle shoots up.^{[5]
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Community Q&A

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Question

Why do I need to fill it with water? Can't I just use air?

Community Answer

Water is heavier than air. This makes water a denser and heavier exhaust, thus allowing the rocket to go higher.

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Question

How come I have to pump so fast?

Community Answer

The gap isn't 100% airtight, so air is leaking out of it. So you need to pump it quickly so that the pressure can build up.

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Question

Why do you need a cork?

Community Answer

To hold the water in bottle as well as to be able to inject the bike pump to get air into the bottle, creating pressure for the launch.

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Tips

Make sure you keep the flippers straight.

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An angle of 45 degrees will get you the maximum distance travelled.

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Make sure the flippers are sturdy and they should not turn soggy if in contact with water.

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Warnings

Do it in an open area.

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This can take several tries to get right! Don't be discouraged.

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Angle the rocket as far as possible from your face or use safety eye wear.^{[6]
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