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Tagged: Chemistry

Study smarter for O Level, AS & A2 — exam technique, mark-scheme tricks and subject guides from the PapaMarks team.

All 163 News 4 Exam guides 60 Subject guides 28 Revision tips 26 Results & retakes 21 For schools 7 Parents 8 Choosing IGCSE 3 Comparisons 3 Study tips 3
Revision tips
IGCSE Science Practicals Without a Lab: 11 Experiments You Can Run in a Browser (2026)

Shared labs, big classes, missing reagents — but Paper 6 still examines the method. How to rehearse every practical skil...

Aug 1, 2026 · 12 min read
Subject guides
IGCSE Chemistry 0620 Paper 6: Every Qualitative Analysis Test (And Why You Should Not Memorise Them)

Cambridge prints the qualitative analysis table in your exam paper — so memorising precipitate colours buys you almost n...

Jul 25, 2026 · 9 min read
Exam guides
IGCSE Paper 6 (Alternative to Practical): The Complete Guide for 2026

Paper 6 is 20% of your science grade and the paper almost nobody revises properly. The six question types that repeat ev...

Jul 25, 2026 · 11 min read
Exam guides
The Most-Tested IGCSE Topics (2026 Report): What 107,200 Real Exam Questions Reveal

We analysed 107,200 tagged Cambridge and Edexcel questions from 4,168 real papers. The finding: in every IGCSE subject,...

Jul 21, 2026 · 6 min read
Revision tips
Interactive IGCSE Revision: Learn by Doing, Not Just Reading (2026)

Rotate a 3D heart, drag a cell into salt water, watch a gradient function draw itself. A tour of PapaMarks' 27 interacti...

Jul 18, 2026 · 8 min read
Subject guides
IGCSE Chemistry (0620) Syllabus: Every Chapter & Topic (2026)

The complete IGCSE Chemistry 0620 syllabus map — all 12 chapters and every topic, each linked to practice. Plan revision...

Jul 17, 2026 · 7 min read
Subject guides
IGCSE Chemistry Mole Calculations, Step by Step (Every Question Type)

Every mole question is the same three moves: convert to moles, use the balanced equation's ratio, convert back. The thre...

Jul 17, 2026 · 5 min read
Revision tips
The Most-Tested IGCSE Chemistry (0620) Topics — We Analysed 17,000+ Past-Paper Questions

We analysed 17,492 real IGCSE Chemistry 0620 past-paper questions to find the most-tested topics — the "big four" chapte...

Jul 13, 2026 · 4 min read
Subject guides
How to Get an A* in IGCSE Chemistry (0620): Moles, Equations & Every Mark

The exact playbook for an A* in Cambridge IGCSE Chemistry 0620 — the Extended tier, mole calculations, balanced equation...

Jul 11, 2026 · 6 min read