Then you need a different guide. The separate sciences are examined on their own specifications, Chemistry (8462) among them, and they carry more chemistry than Trilogy does.

The one you want is AQA GCSE Chemistry, Foundation.

AQA runs two combined science specifications. Combined Science: Trilogy is 8464, taught as three separate sciences, and that is the one this guide set covers. Combined Science: Synergy is 8465 and is taught as four integrated topics instead.

The code is on your exam timetable. If it says 8465 this is not your specification.

This is the Foundation tier guide, offering grades 5-5 to 1-1 of the double award.

AQA sits the same numbered papers at either tier, so Chemistry Paper 1 and Chemistry Paper 2 is what you sit whichever tier you are entered for. The tier changes the content and the grades available, not the paper numbers.

Your teacher decides the entry, usually during Year 11. If you are moved up to Higher you will need the Higher guide, which adds the higher-tier content.

Chemistry Paper 1 covers Atomic Structure and the Periodic Table, Bonding, Structure, and the Properties of Matter, Quantitative Chemistry, Chemical Changes, Energy Changes. Chemistry Paper 2 covers The Rate and Extent of Chemical Change, Organic Chemistry, Chemical Analysis, Chemistry of the Atmosphere, Using Resources.

Paper 2 questions can also draw on the fundamental ideas of atomic structure, bonding and quantitative chemistry, so the Paper 1 content is never finished with. The full breakdown is here.

Yes, on the written papers. AQA does not assess them separately, so questions about method, apparatus, variables and results appear inside the topics: making a soluble salt, electrolysis, temperature change, rates of reaction, chromatography, water purification and, at separate science only, identifying ions.

Those questions are in the guide in the topics they belong to.

Yes, and they sit in the topics they belong to rather than being folded into theory: relative formula mass, the mole and the Avogadro constant, conservation of mass, reacting masses, limiting reactants, empirical formulae, concentration in g/dm³ and mol/dm³, percentage yield, atom economy and Rf values.

By subtopic, never by topic. The largest topic here is 188 questions, which is not a session. It divides into subtopics of 8 to 25 questions, and one of those is twenty minutes.

Any point in Year 10 or Year 11. Both papers are sat at the end of Year 11 and cover the full two years, so no part of the guide is too early.

The usual pattern is a subtopic in the week it is taught, then returns on days 1, 3, 7, 14 and 30.

Yes. This guide handles recall. Past papers handle the six-mark answers, the unfamiliar contexts and finishing the paper in the time. AQA publishes them free.

A PDF of 1,039 exam-style questions covering the whole of AQA GCSE Combined Science Trilogy Chemistry, Foundation tier, with the answers printed after each topic.

It is not a textbook. It is the tool for getting taught content into memory and for showing whether it went in.

Three things decide it, and all three are on the exam timetable.

The route. Separate sciences, sat as three GCSEs, are Chemistry 8462 and its two siblings. Combined Science is a double award.
Which combined science. AQA runs Trilogy (8464) and Synergy (8465). They are different courses.
The tier. Foundation offers grades 5-5 to 1-1 of the double award.

This guide is Combined Science: Trilogy, 8464, Foundation tier.

There should be handwritten answers on paper and three passes over the same questions. The method produces two numbers each session, the score on the first closed-book pass and the score on the third. Those two numbers are a better thing to ask for than the number of hours spent.

Rereading and highlighting are the two most common revision activities and Dunlosky and colleagues rated both low utility in their 2013 review of ten techniques. They raise how familiar the material feels without raising the ability to produce it with the book shut.

The method page sets out what to do instead.

£7.00 for the whole specification at that tier. A GCSE chemistry revision guide is usually £6 to £10 and a full textbook £20 to £30. The three sciences within Trilogy are sold as three guides because biology and physics are examined on their own papers.

67 subtopics at roughly twenty minutes each is about 22 hours for a full first pass of the course. Returns afterwards are three to five minutes each.

Partly. Foundation carries the content common to both tiers, so everything in this guide stays relevant. A student moved to Higher would need the Higher guide as well, because Higher adds content that the Foundation papers do not examine.

Past papers, free from AQA, a calculator, and their own notes for anything not yet taught.