Cambridge House Grammar School GCSE students were well above the Northern Ireland average in Double Award Science.
As with last week’s A Level results, A* to B grades have all increased – from 67.8% last year to 74% this year.
In eight subjects pupils achieved 100% A* to C grades. These include biology, business studies, geography, home economics, physics, single award science, performing arts and double award science.
Principal of Cambridge House Grammar School, Elma Lutton, said: “We are thrilled at the performance of our students.
A key focus being science, it is testament to the commitment shown by the pupils and teachers that all students received an A* to C grade in a science subject.
“We pride ourselves on being a centre of excellence for enterprise; this year has been no exception, as a 100% pass rate has been achieved in business studies. Staying true to the school’s ethos of creating futures, I’m personally very pleased that students have performed so well in STEM subjects which will in essence help map a future study and career path for them.”