Gillespie news: cool carbon dioxide

Cool carbon dioxide (do you get the joke?)

It began in Lab_13. It was a foggy morning and it was cold. We were on our way to the school for the Lab_13 committee meeting.

In the middle of our meeting suddenly a mysterious figure appeared through the door. She was clutching a thermos flask full of something unexpected and freezing. We asked what the temperature of it was and there was a reply of “-78.5°C.”At this our brains exploded!

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Coffee bubbles full of carbon dioxide gas

Then Carole plopped it into her coffee and gas rose up, bubbles started to do what bubbles do best: bubble! We wondered why it didn’t turn into a liquid. The answer was carbon dioxide ice was sublimating (turning into a gas and skipping the liquid state).

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The Thermos flask and the balloon – which is full of carbon dioxide gas

You could use it in a balloon instead of blowing it up. Hope you enjoyed this story.

Written by Nojus (Y5) and Choi Ying (Y6)

 

About lab13network

Lab_13 is a space in a school managed by pupils for pupils to conduct their own research and experiments driven by their curiosity, imagination and enthusiasm, and under the watchful supervision of a Scientist in Residence (not a teacher!!).
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