The college invited pupils from Sir Thomas Boteler, St Gregory’s, Cardinal Newman and Beamont Collegiate Academy into college to meet experts from Solvay.
They also discovered what learning is like in a college laboratory and took part in a maths challenge.
Tutor Stephen Pennington, Science Tutor and STEM coordinator, said: “It was an opportunity for us and for the pupils to interact with local industry. We hope those who took part will be inspired to pursue science in future either in education or in a career.”
Priestley became the first sixth form college in the country to receive STEM-assured status putting the college on a list of the UK’s top providers of education in Science, Technology, Engineering and Maths.