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!
What Do I Need?
- Washing up liquid and water
- Bucket or large container
- 8 pipe cleaners
- 12 Straws
- Scissors
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!
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.
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?
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