The Square Bubble Experiments - Free Science Experiments

How to Make a Square Bubble!

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I know...I know...

I said that nearly all bubbles are spherical.  

Nearly all of them are but not this one. 

In this experiment we’ll be making a square bubble!

Square Bubble - What Do I Need?

What Do I Need?

  • Washing up liquid and water
  • Bucket or large container
  • 8 pipe cleaners
  • 12 Straws
  • Scissors
Square Bubble - How Do I Do It?

How Do I Do It?

STEP1 - First thing is to make our square bubble maker.  Take a pipe cleaner and bend and twist it round to make a ‘corner shape’ as shown.

WARNING: Make sure that you don’t make your square bubble maker too big, make sure it can fit in your bucket!

STEP2 - Get an adult to help out chopping all of your straws in half.

STEP3 - Slide your ‘half straws’ over your pipe cleaner ‘corner shape’ to make one corner of your cube.

STEP4 - Repeat this process to build out your straw cube framework.

STEP5 - Submerge your bubbler-maker into your bubble mixture. Lift it out and give it a little shake and you should see a wondrous site, a square bubble!

Square Bubble - How Do I Do It? - 2

What’s Going On?

Doesn’t look like it’s possible, does it? 

Looks sort of mystical and out of this world but it’s actually all to do with pressure.

A bubble film forms between each of the sides of the cube framework. 

This means that you can have a square bubble in the centre where the pressure is close enough to equal to make it work.

Square Bubble - What’s Going On?
More Fun Please! - Experiment Like A Real Scientist!
  • Try not to play with your bubble for too long!?
  • Would other shapes be possible? 
  • Could you make a triangle bubble?
  • Try using a straw to blow a ‘normal’ bubble inside the square bubble, why does that work?
Square Bubble - Experiment Like A Real Scientist!
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