My weekly post on triple Science...
Science - Biology, Chemistry, Physics - is made up of various modules, including practical work.
In Year 10, everyone takes Core Science - which is made up of 4 modules each of Biology, Chemistry, Physics, and the related practical tasks. This leads to a single GCSE in Science, if they decide to cash in the qualification then.
In Year 11, they all take Additional Science, which is a further four modules in each strand plus the practical works. If they cash in this qualification, they get a GCSE in Additional Science.
If the do a further module in each strand, ie Biology 3, Chemistry 3, Physics 3, the can put together their Bio 1 (from Y10) and Bio 2 (from Y11) and Bio 3, to give them a Biology GCSE - and the same for Chemistry and Physics, giving them a total of 3 GCSEs for Science.
The big decision if they take three Science subjects is what they are missing out on elsewhere in the curriculum. The curriculum should be broad and balanced, and they soon narrow down when they get into sixth form. Is it really wise to narrow their subjects before they've even finished Year 9? The choice is personal, according to the timetabling (option blocks) in your school.
Traditionally, bright kids only ever did two Sciences (I did Physics and Chemistry). When the National Curriculum came in, it was still standard to get two qualifications in Science, but broadened to cover the whole spectrum (can't argue with that). It is only in relatively recent times that Triple Science has been put on a pedestal.
I love my subject, but would not promote it if it meant dropping a foreign language, for example.
Core/Additional is sufficient for A-level - the A-level courses start from where Additional Science leaves off.