What you need:
- Bubble wand
- Bubble mix (you can get this from lots of high street shops) OR
water mixed with washing up liquid
- A cold day or night - below minus 5 degrees Celsius
What to do:
If you made your own bubble mix with water and washing up
liquid, blow a bubble inside to check that the mixture works.
Wrap up warm and go outside. If it is very cold (below minus 7
degrees Celsius) you can blow bubbles into the air. Otherwise, you
can blow bubbles gently so they form on the bubble wand and stay
You should see ice crystals forming over the bubble. Watch what
it does when it pops.
Check out the Flickr images (shown on the right of this page)
courtesy of Ian Russell (www.interactives.co.uk)
This video shows a bubble freezing.
Or watch in YouTube.