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Combined Science or Triple Science: what is the difference?

Combined Science gives two GCSEs, Triple Science gives three. Here is how they differ and which one might suit you.

Year 9–112 min readUpdated 30 September 2026

At GCSE, schools usually offer two science routes: Combined Science and Triple Science (also called separate sciences). Both cover Biology, Chemistry and Physics, and both can lead to science A levels.

Combined Science

Triple Science

Which one is better?

Neither is "better" for everyone.

Triple Science may suit you if:

Combined Science may suit you if:

Can I take science A levels after Combined Science?

Yes. Many students do. Most sixth forms ask for good grades, such as 6-6 or 7-7 in Combined Science. Check the entry rules of the sixth forms you are interested in.

Tiers

Both routes usually have two tiers: Foundation (grades 1 to 5) and Higher (grades 4 to 9). Your teacher will advise which tier suits you, often after your mock exams.

In short

Combined Science gives two GCSEs; Triple Science gives three and covers more. Both can lead to science A levels. Choose based on your interest, your strengths and your plans after GCSE.

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