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UK GCSE level Biology * Chemistry * Physics ~14-16 * Advanced pre-university Chemistry ~16-18

Doc Brown's Key Stage Three (KS3) SCIENCE QUIZZES

BIOLOGY  *  CHEMISTRY  *  PHYSICS

[Author © Dr Phil Brown PhD: Doc Brown's physics revision of practise questions for KS3 science, suitable for students of UK KS3 Science level AQA, Edexcel, OCR, WJEC and CCEA science courses, ~US grades 7-8 science courses [page updated Mar 16th 2026 *]

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REVISION LINKS TO ALL KS3 SCIENCE practise QUESTIONS

My Key Stage 3 Science Homepage

KS3 SCIENCE QUIZZES - Biology, Chemistry and Physics multiple choice questions

(UK KS3 Science for 11-14 year olds roughly correspond to US high school grades 6, grade 7 and grade 8 school science)

KS3 Biology Quizzes

  1. KS3 Biology Quiz - 7AQUIZ 7A on "Types of cell structure, organisms, tissues, organs"

  2. KS3 Biology Quiz - 7B ReproductionQUIZ 7B on "Human reproduction, genetics, inheritance"

  3. KS3 Biology Quiz - 7C Environment & feeding relationshipsQUIZ 7C on "Variation, classification, Ecology: environment, food chains"

  4. KS3 Biology Quiz - 8A Food and digestionQUIZ 8A on "Food, nutrition, digestion and health issues"

  5. KS3 Biology Quiz - 8B RespirationQUIZ 8B on "Respiration, function of heart and lungs, health issues"

  6. KS3 Biology Quiz - 8C Microbes and diseasesQUIZ 8C on "Microbes, diseases, protection, drugs and health issues"

  7. KS3 Biology Quiz - 9B Fit and healthyQUIZ 9B on "Fitness health, skeleton and muscle action"

  8. KS3 Biology Quiz - 9C Plants and photosynthesisQUIZ 9C on "Plants: photosynthesis, food and reproduction"

KS3 Chemistry Quizzes

  1. KS3 Chemistry Quiz - 7E Acids and alkalis QUIZ 7E Acids, alkalis, salts, pH, neutralisation, reactions of metal compounds

  2. KS3 Chemistry Quiz - 7F Simple chemical reactions QUIZ 7F Important chemical concepts, definitions, types of reaction, reacting mass calculations

  3. KS3 Chemistry Quiz - 7G Particle model of solids, liquids and gases QUIZ 7G Particle models and properties of solids, liquids and gases

  4. KS3 Chemistry Quiz - 7H Solutions QUIZ 7H Elements, compounds, mixtures and methods of separating mixtures.

  5. KS3 Chemistry Quiz - 8E Atoms and elements QUIZ 8E Elements and the Periodic Table

  6. KS3 Chemistry Quiz - 8G Rocks and weathering QUIZ 8H Weathering, erosion, types of rocks and the 'Rock Cycle'

  7. KS3 Chemistry Quiz - 9F Patterns of reactivity QUIZ 9F Reactivity of metals and their extraction

  8. KS3 Chemistry Quiz - 9G Environmental chemistry QUIZ 9G Resources, useful products from chemistry, the environment

KS3 Physics Quizzes

  1. KS3 Physics Quiz - 7I Energy resources QUIZ 7I "Types of energy stores, resources, energy transfers, calculations"

  2. KS3 Physics Quiz - 7J Electrical circuits QUIZ 7J on "Electricity and magnetism"

  3. KS3 Physics Quiz - 7K Forces and their effects QUIZ 7K on "Forces and their effects and motion - speed, acceleration"

  4. KS3 Physics Quiz - 7L The solar system and beyond QUIZ 7L on "The Earth, gravity, weight, our solar system and space beyond"

  5. KS3 Physics Quiz - 8I Heating and cooling QUIZ 8I on "Heating, cooling, state changes, thermal energy transfer"

  6. KS3 Physics Quiz - 8K Light QUIZ 8K on "WAVES - light and sound"

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Links to individual Biology, Chemistry and Physics indexed sets of multiple choice Quizzes

The individual KS3 biology, KS3 chemistry and KS3 physics quizzes of practise questions for final KS3 science exams have been updated to fit in with the 2018+ National Curriculum and AQA, Edexcel and OCR pre-GCSE KS3 Science expectations-specifications

The scoring of the quiz is based on the % correct clicks you need to get to the correct answer

  KS3 Science-BIOLOGY Quizzes

  KS3 Science-CHEMISTRY  Quizzes doc b's CV

  KS3 Science-PHYSICS Quizzes

KS3 Science QUIZ COMPILATIONS

ORGANISMS, BEHAVIOUR and HEALTH

a) Life processes are supported by the organisation of cells into tissues, organs and body systems

b) The human reproductive cycle includes adolescence, fertilisation and foetal development.

c) Conception, growth, development, behaviour and health can be affected by diet, drugs and disease. The study of diet, drugs and disease to include the importance of healthy eating complemented by regular exercise, and the effect of drugs such as alcohol, tobacco and cannabis on mental and physical health. It also includes the effects of bacteria and viruses, such as those associated with sexually transmitted infections.

d) All living things show variation, can be classified and are interdependent, interacting with each other and their environment. The study of variation to include inherited and environmental variation and variation through genetic engineering and selective breeding.

e) Behaviour is influenced by internal and external factors and can be investigated and measured. Behaviour: This includes human and animal behaviour (psychology and ethnology).

QUIZ on  ORGANISMS, BEHAVIOUR and HEALTH

CHEMICAL and MATERIAL BEHAVIOUR

a) The particle model provides explanations for the different physical properties and behaviour of matter.

b) Elements consist of atoms that combine together in chemical reactions to form compounds. The study of elements to include the development and organisation of elements in the Periodic Table. The study of compounds to include the different properties of compounds due to the number and type of atoms and their arrangement.

c) Elements and compounds show characteristic chemical properties and patterns in their behaviour. The study of characteristic chemical properties and patterns can be exemplified by the reactions of metals and non-metals, and acids and bases.

QUIZ on CHEMICAL and MATERIAL BEHAVIOUR

ENERGY, ELECTRICITY and FORCES

a) Energy can be transferred usefully, stored, or dissipated, but cannot be created or destroyed. Energy to include the properties and behaviour of light and sound, renewable energy resources and emerging technologies such as fuel cells.

b) Forces are interactions between objects and can affect their shape and motion. Shape and motion to include pressure effects, linear motion and turning moments.

c) Electric current in circuits can produce a variety of effects. The study of circuits to includes current and voltage in series and parallel circuits. The variety of effects to include electrical devices are designed to make use of a variety of effects caused by electric currents, including heating, chemical changes and magnetic effects.

QUIZ on ENERGY, ELECTRICITY and FORCES

THE ENVIRONMENT, EARTH and UNIVERSE

a) Geological activity is caused by chemical and physical processes. The study of geological activity to include the rock cycle processes, rock formation and weathering.

b) Astronomy and space science provide insight into the nature and observed motions of the sun, moon, stars, planets and other celestial bodies

c) Human activity and natural processes can lead to changes in the environment.

QUIZ on THE ENVIRONMENT, EARTH and UNIVERSE

Summary of the official KS3 Science Specification

The UK KS3 science specification covers biology, chemistry, and physics with a focus on building foundational knowledge, scientific enquiry skills, and preparation for UK GCSE level science courses.

It ensures pupils understand core concepts, methods, and applications of science while fostering curiosity and rational explanation.

Biology – Key Points

  • Structure and function of organisms

    • Cells as the basic unit of life, including cell structure and function.

    • Organs and organ systems (digestive, circulatory, respiratory, reproductive).

  • Reproduction and genetics

    • Human reproduction, growth, and development.

    • Variation, inheritance, and evolution.

  • Health and interactions

    • Nutrition, lifestyle, and disease.

    • Ecosystems, food chains/webs, and interdependence.

  • Photosynthesis and respiration

    • Energy transfer in plants and animals.

Chemistry – Key Points

  • Matter and atomic structure

    • States of matter, particle model, and changes of state.

    • Atoms, elements, compounds, and mixtures.

  • Chemical reactions

    • Acids, bases, salts, and neutralisation.

    • Combustion, oxidation, and displacement reactions.

    • Conservation of mass and reactivity series.

  • Periodic table and materials

    • Properties and trends of groups (metals, non-metals).

    • Separation techniques (filtration, distillation, chromatography).

  • Earth and atmosphere

    • Composition of the atmosphere, climate change, and sustainability.

Physics – Key Points

  • Forces and motion

    • Speed, velocity, acceleration, and Newton’s laws.

    • Pressure, moments, and turning forces.

  • Energy

    • Energy stores, transfers, and conservation.

    • Work, power, and efficiency.

  • Waves and electricity

    • Sound and light waves, reflection, refraction.

    • Current, voltage, resistance, and circuits.

  • Magnetism and space

    • Magnetic fields, electromagnetism.

    • Solar system, gravity, and space physics.

Overarching Aims

  • Develop scientific knowledge and conceptual understanding across biology, chemistry, and physics.

  • Learn the nature, processes, and methods of science through enquiry and experimentation.

  • Understand the uses and implications of science for society and the environment.

  • Build skills in analysis, prediction, and explanation of natural phenomena.

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Website content © Doc Brown's science 2000+. All copyrights reserved on my science revision notes, images, quizzes, worksheets etc. Copying of 'Doc Brown's Science' website material is NOT permitted. These are UK KS3 science level quizzes. The academic level is ~US grades 6, 7 and 8

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