The Perse School

Perse School celebrates Mole Day

8 Feb 2013

Pupils at The Upper celebrated ‘Mole Day’ on Wednesday with a series of fun and interesting activities focused on the mole – a useful unit of measurement in chemistry.

A mole is the amount of any substance that contains as many elementary particles as there are atoms in 12 grams of pure carbon. The number is approximately 6.02 times 10 to the power of 23, or 1 with 23 noughts. As 6.02 corresponds to 6th February, the School adopted the date as their ‘Mole Day’.  

While the aim was to help students understand the importance of the chemical ‘mole’, many other mole-related activities brought the concept to life, from sporting to artistic. During the day, pupils were set a range of experiments and challenges including:

Mole experiment circus

A lunch-hour session of simple chemistry experiments all related to the mole.

Make a mole competition

Pupils were awarded prizes for the best entries to a competition to make a mole out of a material of their choice.

Guess the number of moles in a ‘mole-oon’

Pupils were challenged to correctly guess the number of moles of gas in a helium balloon carried around the school at lunch.


The sports department ran a MoleBall tournament (a variation of a dodge ball, but with a distance being set at 6.02m)

Mole hunt

Pupils visited various departments around the School to find answers about moles relevant to the subject, for e.g. in the biology classroom there was a question about the animal species

Mole lunch

The catering team created mole-themed dishes such as Chicken Mole Poblano, a Mexican dish with chili and chocolate, and ‘Caramole’ pudding.

Head of Chemistry, Dr Tanya Khimyak, said: “Mole Day has been lots of fun and it’s been great that everyone from the sports department to the catering team got involved, with the new School sport of ‘Mole ball’ proving particularly well-supported. It’s been a really enjoyable way to get an important scientific point across, and I doubt anyone at the School will forget the chemical ‘mole’ in a hurry!

“Vitally-important ‘STEM’ subjects – science, technology, engineering and mathematics – are some of our most popular subjects at The Perse. Mole Day extends pupils’ classroom learning, fuelling their interest and helping to inspire and equip them to take on roles in Britain’s research and development industry in the future”.

Mole Day was created in 1991 by a teacher in the United States as a way to foster interest in chemistry. Schools throughout the United States and around the world now celebrate Mole Day with various activities related to chemistry and/or moles. Due to the American way of presenting dates, Mole Day is traditionally celebrated on October 23 from 6.02am to 6.02pm. For more information, see:

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