Sorry but this form will not work without cookies enabled. Please adjust your browser settings to enable cookies to continue. For more information on how to do this please see ourPrivacy & Cookie Policy.

  • Truly International

    We have students from over 50 different countries at our school, making us a truly international family.

    British International School Bratislava - Truly International

  • Inspiring and Passionate

    Dedicated, motivated and highly professional, all of our staff at The British International School Bratislava are here to ensure that every child thrives.

    British International School Bratislava - Dedicated staff

  • Excellence & Achievement

    Learning at BISB focuses on academic rigour and achieving great results but also on developing individualised skills and talents, enabling students to be successful in all areas of learning.

    BISB Admissions

  • High Quality Learning

    Our passion is education. We help to prepare young people of all ages to embrace the challenges that life brings and the international global society in which their future lie.

    British International School Bratislava - Start your journey

  • Start your journey with us

    We are proud of our growing family of parents, teachers and socially-confident students. We’d love to welcome you too!

    British International School Bratislava

  • Unique Opportunities

    We enrich your child’s learning experience with opportunities beyond the ordinary.

    British International School Bratislava

  • Did you know?

    You can still purchase the BISB cookbook made by our wonderful PTA.


Mole Day

23 October 2015

If you’re reading this on Friday, then yes, it is Mole Day! 

Mole Day is an international day to celebrate the wonders of chemistry!

  • Mole day

It is celebrated on October 23rd from 6:02AM to 18:02 PM and commemorates Avogadro’s number - 6.02 ×〖10〗^23. So why is it celebrated at this particular time? Well if you write the time and date in an American style, you get 6.02 on 10 23.  Hey presto, Avagadro’s number!

This number is the basic measuring unit for chemistry and helps all chemists, including our IB and IGCSE students, carry out important calculations. Without this number there would be no chemistry, and without chemistry there would be no plastics, no batteries for your phone and no fuel for your car. So join the whole world in saying hooray for moles and hooray for chemistry!