water down the plughole... an international experiment that will really put you in a spin!
NOTE: this competition is now closed
So why does water spiral as it goes down the plug hole?
And does it really go down the plug hole in opposite directions on opposite sides of the world?
We’re glad you asked! We've been wondering too!
We want to test the idea that water flows down the plughole in different directions in different parts of the world, by getting people from all over the world to take part in a BIG experiment.
This has never been done before on such a large scale…and we need your help! These pages contain all the information you need to take part:
- Background information
The science behind the experiment.
- Preparing for the experiment
Essential reading before you start.
- Doing the experiment
A step by step guide.
- Tips and tricks
Further hints and advice.
- Registration
Register your results here!
- Extension experiments
More fun stuff to do.
- Fun facts
Science that'll spin you out.
- Web links
A reference list for further research.
- Curriculum links
For school.
- Who's behind the experiment
Meet our friends and partners!
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