At Leaving Certificate level, students may undertake Physics, Chemistry or a combined Physics & Chemistry subject. The Physics & Chemistry syllabus is a discrete syllabus and students presenting for this subject in the Leaving Certificate examination may not present for either of the individual syllabuses, Leaving Certificate Physics or Leaving Certificate Chemistry.
Of the 711 post primary schools, 73 (representing just over 10% of Post Primary Schools) do not offer any of these three subjects. Of these 73 schools, 68 are mixed, 3 are girls only and 2 are boys only.
It is a matter for schools to decide what examinable subjects they will offer at leaving certificate in addition to the required subjects of English, Irish and Mathematics.