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Chemistry Revision

Atomic structure, bonding, quantitative chemistry, chemical changes, energy and organic.

AQA GCSE Chemistry revision is far easier when you know exactly what the 8462 specification expects, and these lessons are written around it for both Foundation and Higher tier. The course is examined in two papers and runs from atomic structure, bonding and quantitative chemistry to chemical changes, energy changes, rates, organic chemistry, chemical analysis, the atmosphere and using resources, including the eight required practicals examiners can question you on.

Each lesson breaks a topic into clear, exam-ready sections with the definitions, equations, worked calculations and diagrams you need to recall under pressure, and it flags Higher-tier and separate-chemistry-only content so you revise the right material. Turn any lesson into a quiz or a flashcard deck in one click to test yourself, and ask the built-in tutor to explain anything from moles and electrolysis to Le Chatelier's principle whenever it stops making sense.

Lessons

Atomic structure and the periodic table

10

Bonding, structure, and the properties of matter

8

Quantitative chemistry

7

Chemical changes

7

Energy changes

4

The rate and extent of chemical change

5

Organic chemistry

7

Chemical analysis

5

Chemistry of the atmosphere

3

  • 7 min

    Lesson

    The Earth's Early Atmosphere and How It Changed

    4.9.1.1 The proportions of different gases in the atmosphere; 4.9.1.2 The Earth's early atmosphere; 4.9.1.3 How oxygen increased; 4.9.1.4 How carbon dioxide decreased

    19 days ago

  • 7 min

    Lesson

    Greenhouse Gases and Climate Change

    4.9.2.1 Greenhouse gases; 4.9.2.2 Human activities which contribute to an increase in greenhouse gases; 4.9.2.3 Global climate change; 4.9.2.4 The carbon footprint and its reduction

    19 days ago

  • 6 min

    Lesson

    Atmospheric Pollutants from Fuels

    4.9.3.1 Atmospheric pollutants from fuels; 4.9.3.2 Properties and effects of atmospheric pollutants

    19 days ago

Using resources

6

Frequently asked questions

It is assessed by two written papers, each 1 hour 45 minutes and worth 100 marks, making up 50% of the GCSE each. There is no coursework, but exam questions can test the eight required practicals.

Paper 1 covers atomic structure and the periodic table, bonding and structure, quantitative chemistry, chemical changes and energy changes. Paper 2 covers rates and equilibrium, organic chemistry, chemical analysis, chemistry of the atmosphere and using resources.

Foundation tier targets grades 1 to 5 and Higher tier targets grades 4 to 9. Higher tier includes extra content such as moles calculations, Le Chatelier's principle and half equations, so revise to the tier you are entered for.

There are eight: making a soluble salt, titration, electrolysis, temperature changes, rates of reaction, chromatography, testing for ions and water purification. Questions often test the method, variables and reasoning rather than just the result.

Yes. Reading every public lesson is free, and a free account lets you generate quizzes and flashcards from them. Pro is optional and simply removes the monthly creation limit.

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