How to cook a comet

It's our School Open Night this evening, a chance for pupils from local Primary schools to come visit the 'big school'. Many of the girls who appear tonight will be sitting in our classrooms in September.

It is an excuse to have fun with our favourite experiments in the science labs, so while the rest of the Biology Department are dissecting pigs' hearts and rats, E and I are putting our Astronomy hats on and cooking a comet!

Cue LOTS of dry ice!

Yay!