Cambridge IGCSE Chemistry (0620)
Explore matter, chemical reactions and their applications, supported by experimental techniques and chemical analysis.
2026–2028 examinations
Course structure and assessment routes
- Core: Papers 1 and 3 plus either Paper 5 or 6; grades C–G.
- Extended: Papers 2 and 4 plus either Paper 5 or 6; grades A*–G. Extended includes Core and Supplement content.
Main syllabus content
- States of matter and atomic structure
- Stoichiometry
- Electrochemistry and energetics
- Chemical reactions
- Acids, bases and salts
- Periodic Table and metals
- Environmental and organic chemistry
- Experimental techniques and chemical analysis
Use Syllabus for the topic checklist. Where the qualification offers options, follow your chosen route rather than treating every option as compulsory.
0620 assessment structure
Use the route above to identify which components you take. Marks below are raw marks; the stated weightings determine their contribution to the award.
Paper 1
Multiple Choice (Core)
- Duration
- 45 minutes
- Marks
- 40
- Weighting
- 30% of Core
Paper 3
Theory (Core)
- Duration
- 1 hour 15 minutes
- Marks
- 80
- Weighting
- 50% of Core
Paper 2
Multiple Choice (Extended)
- Duration
- 45 minutes
- Marks
- 40
- Weighting
- 30% of Extended
Paper 4
Theory (Extended)
- Duration
- 1 hour 15 minutes
- Marks
- 80
- Weighting
- 50% of Extended
Paper 5
Practical Test
- Duration
- 1 hour 15 minutes
- Marks
- 40
- Weighting
- 20%; choose Paper 5 or 6
Paper 6
Alternative to Practical
- Duration
- 1 hour
- Marks
- 40
- Weighting
- 20%; choose Paper 5 or 6
Key assessment information
- Three components are taken, not all six. All are externally assessed; either practical route assesses the experimental skills specified in section 4.
Official sources and verification
Checked 2026-09-04 against the official 0620 syllabus/specification (PDF). 2026–2028 examinations.
Source PDF pages: 8, 9. PDF page positions may differ from printed page numbers.
IGCSEfy is an independent study aid. Check the full official document and your exam-paper instructions, especially exam-year options, equipment and centre arrangements. Older archive papers may follow an earlier syllabus.