How to Make a Powerful Air Pressure Rocket

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.
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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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^{[3]
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(flippers do come in handy!)
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^{[4]
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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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Things You'll Need

Two Liter bottle
Cardboard
Hand pump (bicycle)
Cork or Rubber stopper
Tape
Water

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How to Make a Powerful Air Pressure Rocket

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