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  1. GCSE
  2. Chemistry OCR

Chemistry

Spec J248

Free OCR GCSE Chemistry revision for Foundation and Higher tier: 864 exam-style questions and past papers from 2018–2025 with mark schemes.

Particles

The particle model

Atomic structure

Elements, compounds and mixtures

Purity and separating mixtures

Bonding

Properties of materials

Chemical reactions

Introducing chemical reactions

Energetics

Types of chemical reactions

Electrolysis

Predicting and identifying reactions and products

Predicting chemical reactions

Identifying the products of chemical reactions

Monitoring and controlling chemical reactions

Monitoring chemical reactions

Controlling reactions

Equilibria

Global challenges

Improving processes and products

Organic chemistry

Interpreting and interacting with earth systems

Practical skills

Practical skills

Assessment at a glance

AssessmentFormatDurationMarksWeighting
Paper 1Written exam1h 45m90 marks50%
Paper 2Written exam1h 45m90 marks50%

Course aims & skills

OCR GCSE Chemistry builds the skills examiners reward. By the end of the course you should be able to:

  • recall scientific facts, terms, definitions and units
  • apply knowledge and understanding to unfamiliar situations
  • interpret, analyse and evaluate experimental data
  • plan investigations and evaluate methods and conclusions
  • carry out the required practicals and describe the techniques
  • use and rearrange equations, and work with significant figures
  • process data with appropriate maths skills
  • construct and read graphs, tables and diagrams
  • build and communicate evidence-based scientific arguments

Frequently Asked Questions