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Combined Science - OCR 21st Century

Easy-to-understand homework and revision materials for your GCSE Combined Science OCR 21st Century '9-1' studies and exams

Part of Combined Science

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Exam practice

Quizzes

  • Quiz: Photosynthesis activity 1

    This interactive quiz is suitable for GCSE combined science students studying factors affecting photosynthesis and interpreting photosynthesis test results.

  • Quiz: Photosynthesis activity 2 (higher)

    This interactive quiz is suitable for GCSE combined science students studying interpreting photosynthesis test results, and distance and light intensity.

  • Quiz: Respiration activity 1

    This interactive quiz is suitable for GCSE combined science students studying cellular respiration, aerobic and anaerobic respiration, oxygen debt, and metabolism.

  • Quiz: Respiration activity 2

    This interactive quiz is suitable for GCSE combined science students studying cellular respiration, aerobic and anaerobic respiration, oxygen debt, and metabolism.

  • Quiz: Rates of reaction

    This interactive quiz is suitable for GCSE combined science students studying surface area, temperature, and catalysts on the rate of reaction.

  • Quiz: Exothermic and endothermic reactions

    This interactive quiz is suitable for GCSE combined science students studying reactions and temperature changes, reaction profiles, and explaining energy changes.

  • Quiz: Reversible reactions

    This interactive quiz is suitable for GCSE combined science students studying reversible reactions and the dynamic equilibrium.

  • Quiz: Analysing and identifying substances

    This interactive quiz is suitable for GCSE combined science students studying pure substances, chromatography, and testing for gases.

  • Quiz: Magnetic fields

    This interactive quiz is suitable for GCSE combined science students studying poles of a magnet, induced and permanent magnetism, and detecting and drawing magnetic fields.

Podcasts

  • Atomic structure and the periodic table

    Learn about atomic structure and the periodic table for your GCSE chemistry exam, with Dr Sunayana Bhargava and Tulela Pea.

  • Bonding, structure and properties

    Learn about bonding, structure and properties of matter for your GCSE chemistry exam, with Dr Sunayana Bhargava and Tulela Pea.

  • Chemical changes

    Dr Sunayana Bhargava and Tulela Pea take you through what you need to know about chemical changes for your GCSE chemistry exam.

  • Forces

    Learn all about forces for your GCSE physics exams, with scientists James Stewart and Ellie Hurer.

  • Electricity

    Scientists James Stewart and Ellie Hurer guide you through the key facts about electricity for GCSE physics.

  • Energy

    Learn all about energy for your GCSE physics exam, with Ellie Hurer and James Stewart.

  • The Cell

    All living things are made of cells, which is why they’re called the building blocks of life.

  • The organisation of plants and animals

    Learn all about plant and animal organisation with Dr Alex Lathbridge.

  • Infection and response

    Learn all about infection and response for your GCSE biology exam with Dr Alex Lathbridge.

  • Homeostasis

    Learn all about homeostasis for your GCSE Biology exam with Dr Alex Lathbridge.

  • Inheritance, variation and evolution

    Learn all about inheritance, variation and evolution for your GCSE Biology exam with Dr Alex Lathbridge.

  • Ecology

    Learn all about ecology for your GCSE Biology exam with Dr Alex Lathbridge.

  • Science exam techniques

    Learn all about science exam techniques for your GCSE science exams with Dr Alex Lathbridge.

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