Last week was very exciting as it was our annual theme week and we were involved in all sorts of different activities. However, possibly the most interesting activity was nothing to do with RE or Spirituality.
Max’s parents sent us some dry ice to play with!
Dry ice is actually frozen carbon dioxide (which we created in our bicarbonate of soda and vinegar experiment). It is an unusual material because it goes directly from being a solid to a gas without becoming liquid in between. This process is called ‘sublimation’
We took our dry ice outside on a lovely sunny afternoon with some coloured water and some washing up liquid.
Dry ice placed into a cylinder of coloured water
The ice is turning into gas. You can see it escaping into the air and it has made the water bubble.
Then we added a few drops of washing up liquid
The washing up liquid created a film on top of the water so the gas was unable to escape into the air. This created big bubbles which got bigger and bigger until they eventually popped and the gas was able to escape.
Everybody wanted to touch the bubbles!
This was a great end to our materials topic so thank you very much to Max’s parents.
The Amazing World of 5JdV 
Apr 02, 2012 @ 14:18:19
We’re glad you all enjoyed yourselves. I certainly enjoyed playing with it the evening before.
(By “playing with”, I obviously mean performing serious scientific experiments).
Apr 03, 2012 @ 07:28:41
Obviously! As you can see from our photos. We were all very serious!
Apr 04, 2012 @ 08:38:56
We didn’t try making a baloon blow itself up!!! They can get really big!