AS & A Level Marine Science · Syllabus 9693

The ocean, explained properly.

Every topic of the 2025-2027 9693 syllabus - water and bonding, plate tectonics and tides, ecology and nutrients, then cells, photosynthesis, fisheries and conservation at A Level - with the data-handling Papers 2 and 4 examine. Free, no login.

9 topics · 72 exam-style questions · 244 marks, all free

See the full AS & A Level Marine Science syllabus

Layered ocean cross-sections with a coral reef, a fishing boat and a water molecule on a deep navy ground
The two halves of the syllabus

Every syllabus topic, in Cambridge's own structure

Work through them in order or jump straight to what you need tonight. Each topic page teaches the content, then tests it.

Area 1

AS Level content

Sections 1-5 of the 9693 syllabus: the chemistry and physics of water, tectonic and coastal processes, ecology and nutrient cycles, classification and populations, and the five marine ecosystems.

Area 2

A Level content

Sections 6-9: cell structure and gas exchange, osmoregulation, photosynthesis and chemosynthesis, life cycles, fisheries and aquaculture, human impacts and conservation.

Exam practice

The part that turns knowing into marks

Knowing the content and scoring marks are two different skills. These tools train the second one.

Command words

Every command word Cambridge uses, what it actually means, and what the examiner wants to see. Includes a trainer that shows you the difference between a 1-mark and a 2-mark answer to the same question.

Open

Question bank

Every question on the site in one place. Filter by topic, command word, marks or AO1/AO2, then build a set and mark yourself against the scheme.

Open

Why students lose marks

Real student answers that score badly, the exact reason each one loses marks, and the version that scores. This is where most marks are quietly thrown away.

Open

Quick 10

Ten random questions. Get a score, a breakdown by area, and a focused follow-up set built from whatever you were weakest on.

Open

Progress tracker

Your Learn / Practise / Test / Mastered status for every topic, saved in this browser. Shows exactly what is left.

Open

How long have you got?

Pick the time you actually have. The plan changes to fit it.

Everything here is free

No packs to buy, no subscription and no login. Every topic, every question and every diagram is open to any student who needs it.

Track your progress