What Are the Best Resources for IB Chemistry?

The best combination is the syllabus's data booklet plus worked past papers, concise topic-by-topic notes, and mark-scheme-checked practice questions — not one thick textbook read cover to cover. On RevisionPrep you'll find topical worksheets, revision notes and full mock papers built around the 2025 Chemistry guide's Structure and Reactivity framework.

Yes — the IB Chemistry data booklet is provided in every exam paper, so you never memorise formulae, constants or the periodic table. What actually costs marks isn't forgetting a value; it's not knowing which section to open and wasting two minutes flicking through it mid-question.

There's no single winner — Pearson's Chemistry for the IB Diploma and Oxford's IB Chemistry Course Companion are the two most widely used, both aligned to the current guide's Structure and Reactivity structure. Either works, but neither teaches exam technique on its own; you still need timed practice against real mark schemes.

No. Past papers are essential for command terms and timing, but according to the IB, the current Chemistry guide (first exams 2025) reorganised content into two new strands, Structure and Reactivity, replacing the old numbered topics — so only the most recent one or two sessions truly match what you'll be examined on.

Paper 3 tests data-based analysis and practical-scheme evaluation, so revise by practising uncertainty calculations and graph interpretation, not by re-reading notes. It runs 1 hour at SL and 1 hour 15 at HL, and most lost marks come from misreading error bars or uncertainty ranges, not from forgetting content.

HL covers everything in SL plus extra depth within Structure 2-3 and Reactivity 2-3, roughly 90 additional teaching hours, and longer, more demanding Papers 1 and 2 with multi-step equilibrium and organic questions. It's the depth of treatment, not just extra topics, that separates the two levels.

The Internal Assessment — one individual scientific investigation — counts for 20% of the final grade at both SL and HL, marked by your teacher against the IB's assessment criteria and externally moderated. It's the one component fully within a student's control, so it's worth getting right early rather than leaving it to the final term.

Equilibrium, acids and bases, and organic reaction mechanisms dominate Paper 2 across recent sessions, alongside energetics calculations using Hess's Law. HL papers add heavier equilibrium-constant and electrochemistry questions. Structure topics like atomic structure and periodicity tend to show up more in Paper 1's multiple-choice format than in extended response.

Yes — IB Chemistry HL is consistently among the more demanding DP sciences because it combines heavy content with maths-based calculation and abstract ideas like equilibrium and orbital theory. SL is more manageable but still needs solid numerical fluency and data-analysis skills, not just memorising definitions.

A genuine 7 comes from consistent accuracy across all three papers, not brilliance in one; grade boundaries for a 7 have typically sat around 75-80% of raw marks in recent sessions, though they shift slightly each time. I tell every student I teach: careless data-booklet and unit errors cost more marks over a year than any single difficult topic ever does.

Most students revise seriously for 3-4 focused hours a week outside class in Year 12, rising to 6-8 hours a week ahead of mocks and finals in Year 13. Quality of retrieval practice — testing yourself against mark schemes — matters more than the raw number of hours logged.

A textbook alone rarely gets a student to a 6 or 7, because it teaches content, not exam technique. Most students also need topic-based practice questions with mark schemes and condensed revision notes to consolidate before mocks. Think of the textbook as the foundation, not the whole build.

Costs vary widely: a physical textbook runs roughly USD 40-70, individual past papers from the official IB store cost a few dollars each, and dedicated online revision platforms typically charge a flat monthly or annual fee rather than per-resource pricing. Compare what's actually included, not just the sticker price.

Both have a place — video is good for a first pass on a tricky concept like equilibrium shifts, but it doesn't build the written exam technique examiners actually mark. A structured mix of concise notes, topic worksheets and full past papers, checked against real mark schemes, does more for the final grade than video alone.